Liabilities / Assets
72nd percentile
Higher debt load relative to assets than 72% of similar nonprofits.
EIN 47-4365749 • 501(c)3 • San Antonio, TX
Profile
The organization is to be operated exclusively to preserve and restore the alamo complex and to educate and inspire visitors on the history of all those who lived, fought, and died there.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
72nd percentile
Higher debt load relative to assets than 72% of similar nonprofits.
Liabilities / Revenue
50th percentile
Higher debt load relative to revenue than 50% of similar nonprofits.
Net Margin
53rd percentile
Higher net margin than 53% of similar nonprofits.
Top Officer Pay
61st percentile
Higher top officer pay than 61% of similar nonprofits.
Top officer pay equals 0.5% of source-year revenue.
Asset Growth
95th percentile
Faster asset growth than 95% of similar nonprofits.
Revenue Growth
76th percentile
Faster revenue growth than 76% of similar nonprofits.
Assets
Up$55,295,913
Up $18,148,553 (+49%) from 2023
Liabilities
Up$28,503,112
Up $13,121,702 (+85%) from 2023
Net Assets
Up$26,792,801
Up $5,026,851 (+23%) from 2023
Revenue
Up$87,498,587
Up $17,855,715 (+26%) from 2023
Expenses
Up$82,471,736
Up $28,337,138 (+52%) from 2023
Net Income
Down$5,026,851
Down $10,481,423 (-68%) from 2023
Most recent year
2024 • Form 990Detailed filing. Detailed filing data is available for this year.
The organization is to be operated exclusively to preserve and restore the alamo complex and to educate and inspire visitors on the history of all those who lived, fought, and died there.
To preserve the Alamo, the Shrine of Texas Liberty, and bring its own unique story to life - to inspire visitors and honor all those who lived, fought, and died here.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Cash and Non-Interest-Bearing Accounts | $3,198,100 | $13,698,976 | ▲ $10,500,876 |
| Savings and Temporary Cash Investments | $10,714,389 | $8,672,657 | ▼ $2,041,732 |
| Pledges and Grants Receivable | $0 | $1,805,331 | ▲ $1,805,331 |
| Prepaid Expenses and Deferred Charges | $115,887 | $1,270,615 | ▲ $1,154,728 |
| Land, Buildings, and Equipment, Net | $175,222 | $276,848 | ▲ $101,626 |
| Accounts Receivable | $23,850 | $78,386 | ▲ $54,536 |
| Inventories for Sale or Use | $2,855 | $0 | ▼ $2,855 |
| Receivable From Disqualified Prsn | $0 | $0 | → $0 |
| Receivables From Officers Etc | $0 | $0 | → $0 |
| Investments Other Securities | $0 | - | - |
| Investments Program Related | $0 | - | - |
| Loans From Officers Directors | $0 | $0 | → $0 |
| Total Assets | $37,147,360 | $55,295,913 | ▲ $18,148,553 |
| Other Assets Total | $22,917,057 | $29,493,100 | ▲ $6,576,043 |
| Liabilities | |||
| Accounts Payable and Accrued Expenses | $15,013,179 | $16,929,359 | ▲ $1,916,180 |
| Other Liabilities | $368,231 | $11,571,275 | ▲ $11,203,044 |
| Deferred Revenue | - | $2,478 | - |
| Mortgage Notes Payable Secured by Investment Property | $0 | - | - |
| Total Liabilities | $15,381,410 | $28,503,112 | ▲ $13,121,702 |
| Net Assets / Fund Balance | |||
| Net Assets With Donor Restrictions | $14,100,590 | $15,977,042 | ▲ $1,876,452 |
| Net Assets Without Donor Restrictions | $7,665,360 | $10,815,759 | ▲ $3,150,399 |
| Total Net Assets Fund Balance | $21,765,950 | $26,792,801 | ▲ $5,026,851 |
| Total Liabilities and Net Assets / Fund Balance | $37,147,360 | $55,295,913 | ▲ $18,148,553 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Other Land Buildings | $276,848 | $76,328 | $353,176 |
| Other Assets Org | $937,422 | - | - |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Kathryn Ann ROGERS | Executive Director | FT | $299,023 | $135,104 | $434,127 |
| Lisa Tapp | Chief Financial Officer | FT | $178,724 | $12,856 | $191,580 |
| Tim Weldon | Managing Director | FT | $157,765 | $22,198 | $179,963 |
| Daniela Serna | In-house Counsel | FT | $135,765 | $30,218 | $165,983 |
| Jill Deyoung | Chief Administrative Officer | FT | $134,098 | $29,707 | $163,805 |
| Sheila Mayfield | Chief Marketing Officer | FT | $115,891 | $30,214 | $146,105 |
| Pamela Rosser | Alamo Conservator | FT | $122,013 | $21,381 | $143,394 |
| Kate Carey | VP of Education & Guest Experience | FT | $113,288 | $18,636 | $131,924 |
| Name | Title |
|---|---|
| Welcome W Wilson Jr | Chairman |
| Charlie Amato | Director |
| Francisco Cigarrao | Director |
| Peter J Holt | Director |
| Adrian Piloto | Glo Advisory Director |
| Hope Andrade | Treasurer |
| Contractor | Services | Location | Compensation |
|---|---|---|---|
| Clark Guido | Construction Management | 7500 OLD GEORGETOWN RD, Bethesda, MD 20814 | $22,313,188 |
| Gallagher & Associates | Construction Services | 1140 3rd Street NE, Washington, DC 20002 | $12,203,625 |
| Gensler | Construction Services | PO BOX 848279, Dallas, TX 78284 | $7,101,979 |
| Gw Mitchell Construction | Construction Services | 1926 GULFMART ST 201, San Antonio, TX 78217 | $4,730,469 |
| Mark G Anderson Consultant | Construction Services | 730 11TH STREET NW, Washington, DC 20001 | $4,696,374 |
| Line Item | Amount |
|---|---|
| Other Expenses | $70,842,101 |
| Salaries, Compensation, and Employee Benefits | $11,629,635 |
| Total Fundraising Expense | $227,697 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Fees for Services Other | $63,874,622 | $391,662 | $827 | $64,267,111 |
| Other Salaries and Wages | $7,677,304 | $1,203,577 | $136,865 | $9,017,746 |
| Occupancy | $1,900,369 | $4,269 | $0 | $1,904,638 |
| Office Expenses | $703,868 | $241,195 | $5,914 | $950,977 |
| Other Employee Benefits | $690,702 | $108,282 | $12,313 | $811,297 |
| Payroll Taxes | $637,793 | $99,988 | $11,370 | $749,151 |
| Current Officers, Directors, Trustees, and Key Employees | $587,703 | $92,135 | $10,477 | $690,315 |
| Pension Plan Contributions | $307,446 | $48,199 | $5,481 | $361,126 |
| Travel | $250,364 | $68,126 | $26,426 | $344,916 |
| Other Expenses | $219,035 | $2,056 | $77 | $221,091 |
| Advertising | $185,467 | $264 | $17,947 | $203,678 |
| Fees for Services Legal | $200,536 | - | - | $200,536 |
| Insurance | $179,154 | $7,604 | - | $186,758 |
| Fees for Services Accounting | - | $70,603 | - | $70,603 |
| Depreciation Depletion | $63,588 | - | - | $63,588 |
| Information Technology | $56,785 | - | - | $56,785 |
| Total Functional Expenses | $79,898,181 | $2,345,858 | $227,697 | $82,471,736 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
| Line Item | Beginning | End | Change |
|---|---|---|---|
| Loans from Officers, Directors, Trustees, and Key Employees | $0 | $0 | → $0 |
| Receivables from Disqualified Persons | $0 | $0 | → $0 |
| Receivables from Officers, Directors, Trustees, and Key Employees | $0 | $0 | → $0 |
| Liability | Amount |
|---|---|
| Glo Working Capital Advance | $10,000,000 |
| Right of Use Liability | $986,615 |
| Texas General Land Office Reimbursement Payable | $569,152 |
| Accounts Payable - Rtaf | $15,508 |
“The members of the Executive Committee will consist of the Chairman, who shall serve as Chairman of the Executive Committee and preside at all meetings of the Executive Committee, and at least two other individuals appointed by the Board. A majority of the persons serving on the Executive Committee must be Directors. If any vacancy or vacancies occur in the Executive Committee, such vacancy or vacancies shall be filled by the Board. The Executive Committee shall have and may exercise the authority of the Board in the management of the business and affairs of the Corporation, except where action of the Board is required by statute or by the Certificate of Formation, as it may be amended. The Executive Committee shall keep regular minutes of its proceedings and report the same to the Board when required.”
“Form 990 is sent to the organization's board of directors for approval before filing.”
“The organization actively monitors and updates its conflict of interest documentation. If a conflict arises, the individual abstains from voting and is not involved with the decision making regarding the transaction.”
“THE EXECUTIVE COMMITTEE OF THE BOARD REVIEWS AND APPROVES COMPENSATION. MANAGMENT CONDUCTS CONTEMPORANEOUS DOCUMENTATION OF THEIR FINDINGS OF THE COMPARABILITY DATA. HIRING IS CONDUCTED THROUGH A MERIT BASED OPEN SEARCH WHEREBY CANDIDATES ARE OFFERED POSITIONS AND SALARIES COMMENSURATE WITH INDUSTRY NORMS, LOCAL MARKET RATES AND THEIR COMPARABLE EXPERTISE AND EXPERIENCE. The process was last conducted during fiscal year 2024.”
“THE EXECUTIVE COMMITTEE OF THE BOARD REVIEWS AND APPROVES COMPENSATION. MANAGMENT CONDUCTS CONTEMPORANEOUS DOCUMENTATION OF THEIR FINDINGS OF THE COMPARABILITY DATA. HIRING IS CONDUCTED THROUGH A MERIT BASED OPEN SEARCH WHEREBY CANDIDATES ARE OFFERED POSITIONS AND SALARIES COMMENSURATE WITH INDUSTRY NORMS, LOCAL MARKET RATES AND THEIR COMPARABLE EXPERTISE AND EXPERIENCE. The process was last conducted during fiscal year 2024.”
“These documents are not made available to the public.”
“Other Program Revenue - Total Revenue: 198330, Related or Exempt Function Revenue: 198330, Unrelated Business Revenue: , Revenue Excluded from Tax Under Sections 512, 513, or 514: ;”
“Alamo Plan Contracted Services - Total Expense: 64210562, Program Service Expense: 63818538, Management and General Expenses: 391287, Fundraising Expenses: 737; Bank Fees - Total Expense: 56549, Program Service Expense: 56084, Management and General Expenses: 375, Fundraising Expenses: 90;”
“Each entity included in this consolidation is a non-profit organization exempt from federal income taxation under Section 501(c)(3) of the Internal Revenue Code, and are not "private foundations accordingly, donors of money and/or property are entitled to the maximum charitable contribution deduction allowed by law. The Organization is not subject to Texas margin tax. Management is not aware of any tax positions that would have a significant impact on its financial position. Its tax returns for the last four years remain subject to examination.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
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| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 16929359 |
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| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 78386 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | To preserve the Alamo, the Shrine of Texas Liberty, and bring its own unique story to life - to inspire visitors and honor all those who lived, fought, and died here. |
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| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 264 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 185467 |
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| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 2102251391 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 321 ALAMO PLAZA SUITE 200 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | SAN ANTONIO |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | TX |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 78205 |
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| IRS990/ContractorCompensationGrp/CompensationAmt | 4 | 4696374 |
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| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 1 | 1140 3rd Street NE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 2 | PO BOX 848279 |
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| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 4 | 730 11TH STREET NW |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | BETHESDA |
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| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 3 | TX |
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| IRS990/ContractorCompensationGrp/ServicesDesc | 3 | CONSTRUCTION SERVICES |
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| IRS990/CreditCounselingInd | 0 | false |
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| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
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| IRS990/Desc | 0 | Alamo Trust, Inc. (ATI) is a 501c3 nonprofit organization that oversees the daily operations at the Alamo and the implementation of the Alamo Plan. Located in the heart of San Antonio, the Alamo stands as the Shrine of Texas Liberty. More than 1.2 million visitors travel to the site each year, making it the #1 most visited destination in the State of Texas. The 300-year history of the Alamo is world-renowned and represents the core of Texas' identity today. In 1960, the Alamo was designated a United States National Historic Landmark, and in 2015, it became part of the Lone Star State's only UNESCO World Heritage Site. Witness living history, experience authentic artifacts, and explore an iconic landmark that shaped the country. The Alamo offers the following programs and experiences: Remember the Alamo Guided Tour: Led by an Alamo History Interpreter, this walking tour explores the heroes and events, including the Battle of the Alamo, that have made the story of the Alamo captivating for generations. Includes entry into the iconic Alamo Church and the Alamo Exhibit at the Ralston Family Collections Center. A Line in the Sand Self-Guided Experience: Enjoy the complete A Line in the Sand Self-Guided Experience with the Victory or Death Audio Tour, narrated by Ray Benson and entry into the Alamo Exhibit. The self-guided audio tour leads you through the Alamo Church, grounds, and includes 11 stops in the new Alamo Exhibit at the Ralston Family Collections Center where you can view the Phil Collins Collection and more! The Alamo Exhibit at the Ralston Family Collections Center: Experience the Collector's Journey at the Alamo Exhibit in the new Ralston Family Collections Center. View the Phil Collins Collection, including the Battle of the Alamo Diorama featuring his narration, explore artifacts from the Donald and Louise Yena Spanish Colonial Collection, engage with interactive exhibits, and more! Alamo Church Free Entry: Experience the iconic Alamo Church. Established as a mission, it later became a military stronghold for Texas Independence. Entering Alamo Church is always free. To help preserve the historic site, visitors will need to reserve their free ticket to enter the Church ahead of their visit. Victory or Death Audio Tour: Upgrade your free experience with the Victory or Death Audio Tour, narrated by country music singer, songwriter, actor and nine-time Grammy Award winner, Ray Benson from Asleep at The Wheel. This 45-minute, rich audio production with a total of 37 stops truly brings the story of the Alamo to life, featuring sound effects, music and interviews with the Alamo's expert curators and historians. Surrounded! The Alamo Augmented Experience: History like you've never seen it! Travel through time with Surrounded! The Alamo Augmented Experience, available in the Alamo Long Barrack. Using a handheld tablet, engage with the history of the Alamo through six experiential portals. Living History Encampment: Make your way to the Alamo's living history encampment, behind the Church, to meet the Alamo's history guides - known as living historians. Enjoy hands-on demonstrations about daily life at the time of the Texas Revolution. Discover what people wore, how they looked after their health, and what essential skills they had to master, such as fire-starting, leather working, and how to take care of their firearms. Musket Firing Demonstration: Take in the sights and sounds of a musket firing demonstration. Learn all about the main weapon used at the Battle of Alamo, the flintlock musket. This 15-minute presentation covers the history and use of flintlock firearms, a quick tutorial on how to fire, and live firings done by the Alamo Living History staff. Alamo Film: Enjoy the Crossroads of History, a 17-minute film that covers 300 years of history at the Alamo. This educational film is free of charge and is shown outside of Long Barrack continuously throughout the day from 9:00 a.m. to 5:00 p.m. everyday. Alamo Podcast: Ex |
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| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 40.0 |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/KeyEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 27194 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 11656 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 20898 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 30218 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 28407 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 18636 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 21381 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 30214 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | HOPE ANDRADE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | WELCOME W WILSON JR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | CHARLIE AMATO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | FRANCISCO CIGARRAO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | PETER J HOLT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | ADRIAN PILOTO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | Kathryn Ann ROGERS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | Lisa Tapp |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | Tim Weldon |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | DANIELA SERNA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | JILL DEYOUNG |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | Kate Carey |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | Pamela Rosser |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | Sheila Mayfield |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 406933 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 7 | 179924 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 159065 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 135765 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 135398 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 113288 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 122013 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 115891 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | CHAIRMAN |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | GLO ADVISORY DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | EXECUTIVE DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | Chief Financial Officer |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | Managing Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | IN-HOUSE COUNSEL |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | Chief Administrative Officer |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | VP of Education & Guest Experience |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | Alamo Conservator |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | Chief Marketing Officer |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/FormationYr | 0 | 2015 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedBasisGrp/ConsolidatedBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | true |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GainOrLossGrp/OtherAmt | 0 | 0 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 5 |
| IRS990/GovernmentGrantsAmt | 0 | 50224110 |
| IRS990/GrantAmt | 0 | 0 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 87515651 |
| IRS990/GrossRentsGrp/RealAmt | 0 | 765504 |
| IRS990/GrossSalesOfInventoryAmt | 0 | 3244087 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | true |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 5 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 10 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartIXInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 56785 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 56785 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 7604 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 179154 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 186758 |
| IRS990/InventoriesForSaleOrUseGrp/BOYAmt | 0 | 2855 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 0 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 646608 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 646608 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/InvestmentsOtherSecuritiesGrp/BOYAmt | 0 | 0 |
| IRS990/InvestmentsProgramRelatedGrp/BOYAmt | 0 | 0 |
| IRS990/IRPDocumentCnt | 0 | 4 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 76328 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 175222 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 276848 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 353176 |
| IRS990/LegalDomicileStateCd | 0 | TX |
| IRS990/LessRentalExpensesGrp/RealAmt | 0 | 0 |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LoansFromOfficersDirectorsGrp/BOYAmt | 0 | 0 |
| IRS990/LoansFromOfficersDirectorsGrp/EOYAmt | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MiscellaneousRevenueGrp/ExclusionAmt | 0 | 0 |
| IRS990/MiscellaneousRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 0 |
| IRS990/MiscellaneousRevenueGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/MiscellaneousRevenueGrp/UnrelatedBusinessRevenueAmt | 0 | 0 |
| IRS990/MissionDesc | 0 | THE ORGANIZATION IS TO BE OPERATED EXCLUSIVELY TO PRESERVE AND RESTORE THE ALAMO COMPLEX AND TO EDUCATE AND INSPIRE VISITORS ON THE HISTORY OF ALL THOSE WHO LIVED, FOUGHT, AND DIED THERE. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/MortgNotesPyblScrdInvstPropGrp/BOYAmt | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 21765950 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 26792801 |
| IRS990/NetIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 3227023 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 3227023 |
| IRS990/NetRentalIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 765504 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 765504 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 7665360 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 10815759 |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 0 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 4269 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 1900369 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 1904638 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 5914 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 241195 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 703868 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 950977 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 22917057 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 29493100 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 12313 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 108282 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 690702 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 811297 |
| IRS990/OtherExpensesGrp/Desc | 0 | COLLECTIONS ACQUISITIONS |
| IRS990/OtherExpensesGrp/Desc | 1 | Supplies |
| IRS990/OtherExpensesGrp/Desc | 2 | MAINTENANCE AND REPAIRS |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 77 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 7898 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 2056 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 2087802 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 275643 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 219035 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 2087802 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 283618 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 221091 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 368231 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 11571275 |
| IRS990/OtherRevenueTotalAmt | 0 | 0 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 136865 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 1203577 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 7677304 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 9017746 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | false |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 11370 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 99988 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 637793 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 749151 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 5481 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 48199 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 307446 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 361126 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 0 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 1805331 |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 115887 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 1270615 |
| IRS990/PrincipalOfcrBusinessName/BusinessNameLine1Txt | 0 | Welcome W Wilson Jr |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 712110 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 712110 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 2 | 712110 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 3 | 712110 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | MANAGEMENT FEE |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | PUBLIC TOURS |
| IRS990/ProgramServiceRevenueGrp/Desc | 2 | MUSEUM ADMISSION |
| IRS990/ProgramServiceRevenueGrp/Desc | 3 | PHOTO SALES |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 13424186 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 2415625 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 2 | 3581798 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 3 | 383739 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 13424186 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 2415625 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 2 | 3581798 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 3 | 383739 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 40035438 |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/PYInvestmentIncomeAmt | 0 | 211898 |
| IRS990/PYOtherExpensesAmt | 0 | 44972697 |
| IRS990/PYOtherRevenueAmt | 0 | 3870486 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 25525050 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 15508274 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 9161901 |
| IRS990/PYTotalExpensesAmt | 0 | 54134598 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 69642872 |
| IRS990/QuidProQuoContributionsInd | 0 | false |
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