| 2025 | University of Virginia Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2024 | University of Virginia Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2024 | Endangered Battlefield Defense Fund | 990EZ | Chairman | 0.1 | $0 | $0 | View return |
| 2024 | The College Foundation of the University of Virginia | 990 | Board Of Visitors Appointee | 1 | $0 | $0 | View return |
| 2024 | Admiral Nimitz Foundation | 990 | Director | 0.2 | $0 | $0 | View return |
| 2024 | San Jacinto Museum of History Association | 990 | Trustee | 1 | $0 | $0 | View return |
| 2024 | John L Nau III Foundation | 990PF | President, Director | 1 | $0 | $0 | View return |
| 2024 | Andrew Jackson Foundation | 990 | Regent Emeri | 2 | $0 | $0 | View return |
| 2024 | The American CIVIL War Museum | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | CIVIL War Preservation Trust | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | Travels Revealing Understanding Trust Hope | 990EZ | Director | 0 | $0 | $0 | View return |
| 2023 | Admiral Nimitz Foundation | 990 | Director | 0.2 | $0 | $0 | View return |
| 2023 | San Jacinto Museum of History Association | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | San Antonio Zoological Society Inc. | 990 | 1st Vice President | 1 | $0 | $0 | View return |
| 2023 | The College Foundation of the University of Virginia | 990 | Board Of Visitors Appointee | 1 | $0 | $0 | View return |
| 2023 | Friends of the Governor'S Mansion | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Thomas Jefferson Foundation Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | Andrew Jackson Foundation | 990 | Regent | 2 | $0 | $0 | View return |
| 2023 | Houston Police Foundation | 990 | Director | 0.25 | $0 | $0 | View return |
| 2023 | Endangered Battlefield Defense Fund | 990EZ | Vice Chairman, End 8/25/23 | 0.1 | $0 | $0 | View return |
| 2023 | Endangered Battlefield Defense Fund | 990EZ | Chairman, Began 8/26/23 | 0.1 | $0 | $0 | View return |
| 2023 | National Park Foundation | 990 | Board Member | 2 | $0 | $0 | View return |
| 2023 | John L Nau III Foundation | 990PF | President, Director | 1 | $0 | $0 | View return |
| 2023 | CIVIL War Preservation Trust | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | Baylor College of Medicine | 990 | Trustee | 2 | $0 | $0 | View return |
| 2022 | Travels Revealing Understanding Trust Hope | 990EZ | Director | 0 | $0 | $0 | View return |
| 2022 | John L Nau III Foundation | 990PF | President, Director | 1 | $0 | $0 | View return |
| 2022 | Admiral Nimitz Foundation | 990 | Director | 0.2 | $0 | $0 | View return |
| 2022 | San Jacinto Museum of History Association | 990 | Trustee | 1 | $0 | $0 | View return |
| 2022 | Lone Star Coastal Alliance | 990 | Honorary Co-Chair Emeritus | 2 | $0 | $0 | View return |
| 2022 | Friends of the Governor'S Mansion | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Houston Police Foundation | 990 | Director | 0.25 | $0 | $0 | View return |
| 2022 | The College Foundation of the University of Virginia | 990 | Board Of Visitors Appointee | 1 | $0 | $0 | View return |
| 2022 | Andrew Jackson Foundation | 990 | Regent | 2 | $0 | $0 | View return |
| 2022 | Gilder Lehrman Institute of American History | 990 | Trustee | 1 | $0 | $0 | View return |
| 2022 | Endangered Battlefield Defense Fund | 990EZ | Vice Chair | 0.1 | $0 | $0 | View return |
| 2022 | CIVIL War Preservation Trust | 990 | Trustee | 1 | $0 | $0 | View return |
| 2022 | National Park Foundation | 990 | Board Of Directors | 2 | $0 | $0 | View return |
| 2021 | Lone Star Coastal Alliance | 990 | Honorary Co-Chair Emeritus | 2 | $0 | $0 | View return |
| 2021 | Admiral Nimitz Foundation | 990 | Director | 0.2 | $0 | $0 | View return |
| 2021 | San Antonio Zoological Society Inc. | 990 | Executive Board Member | 4 | $0 | $0 | View return |
| 2021 | Houston Police Foundation | 990 | Director | 0.25 | $0 | $0 | View return |
| 2021 | Friends of the Governor'S Mansion | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | John L Nau III Foundation | 990PF | President, Director | 1 | $0 | $0 | View return |
| 2021 | Travels Revealing Understanding Trust Hope | 990EZ | Director | 0 | $0 | $0 | View return |
| 2021 | The College Foundation of the University of Virginia | 990 | Board Of Visitors Appointee | 1 | $0 | $0 | View return |
| 2021 | Andrew Jackson Foundation | 990 | Vice Regent | 2 | $0 | $0 | View return |
| 2021 | Endangered Battlefield Defense Fund | 990EZ | Vice Chairman | 0.1 | $0 | $0 | View return |
| 2021 | National Park Foundation | 990 | Board Of Directors | 2 | $0 | $0 | View return |
| 2021 | San Antonio Zoological Society Inc. | 990 | Executive Board Member | 4 | $0 | $0 | View return |
| 2021 | Gilder Lehrman Institute of American History | 990 | Trustee | 1 | $0 | $0 | View return |
| 2021 | CIVIL War Preservation Trust | 990 | Trustee | 1 | $0 | $0 | View return |
| 2021 | CIVIL War Preservation Trust | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | Travels Revealing Understanding Trust Hope | 990EZ | Director | 0 | $0 | $0 | View return |
| 2020 | Friends of the Governor'S Mansion | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Houston Police Foundation | 990 | Director | 0.25 | $0 | $0 | View return |
| 2020 | Lone Star Coastal Alliance | 990 | Honorary Co-Chair Emeritus | 2 | $0 | $0 | View return |
| 2020 | Admiral Nimitz Foundation | 990 | Director | 0.2 | $0 | $0 | View return |
| 2020 | John L Nau III Foundation | 990PF | President, Director | 1 | $0 | $0 | View return |
| 2020 | The College Foundation of the University of Virginia | 990 | Board Of Visitors Appointee | 1 | $0 | $0 | View return |
| 2020 | Endangered Battlefield Defense Fund | 990EZ | Vice Chairman | 0.1 | $0 | $0 | View return |
| 2020 | Gilder Lehrman Institute of American History | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | National Park Foundation | 990 | Board Of Directors | 3 | $0 | $0 | View return |
| 2020 | CIVIL War Preservation Trust | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | Andrew Jackson Foundation | 990 | Vice Regent | 2 | $0 | $0 | View return |
| 2020 | Baylor College of Medicine | 990 | Trustee | 2 | $0 | $0 | View return |
| 2019 | John L Nau III Foundation | 990PF | President, Director | 1 | $0 | $0 | View return |
| 2019 | Travels Revealing Understanding Trust Hope | 990EZ | Director | 0 | $0 | $0 | View return |
| 2019 | San Antonio Parks Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Andrew Jackson Foundation | 990 | Board Member | 2 | $0 | $0 | View return |
| 2019 | Lone Star Coastal Alliance | 990 | Honorary Co-Chair Ermeitus | 2 | $0 | $0 | View return |
| 2019 | Admiral Nimitz Foundation | 990 | Director | 0.2 | $0 | $0 | View return |
| 2019 | Houston Police Foundation | 990 | Director | 0.25 | $0 | $0 | View return |
| 2019 | Congressional Sportsmen'S Foundation | 990 | Director | 4 | $0 | $0 | View return |
| 2019 | Gilder Lehrman Institute of American History | 990 | Trustee | 1 | $0 | $0 | View return |
| 2019 | CIVIL War Preservation Trust | 990 | Trustee | 1 | $0 | $0 | View return |
| 2019 | Baylor College of Medicine | 990 | Trustee | 1 | $0 | $0 | View return |
| 2019 | National Park Foundation | 990 | Board Of Directors | 2 | $0 | $0 | View return |
| 2019 | Endangered Battlefield Defense Fund | 990EZ | Vice Chairman | 0.1 | $0 | $0 | View return |
| 2018 | Lone Star Coastal Alliance | 990 | Director And Chair | 2 | $0 | $0 | View return |
| 2018 | John L Nau III Foundation | 990PF | President, Director | 1 | $0 | $0 | View return |
| 2018 | Congressional Sportsmen'S Foundation | 990 | Director | 4 | $0 | $0 | View return |
| 2018 | Congressional Sportsmen'S Foundation | 990 | Director | 4 | $0 | $0 | View return |
| 2018 | Admiral Nimitz Foundation | 990 | Director | 0.2 | $0 | $0 | View return |
| 2018 | Andrew Jackson Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2018 | Houston Police Foundation | 990 | Director | 0.25 | $0 | $0 | View return |
| 2018 | Travels Revealing Understanding Trust Hope | 990EZ | Director | 0 | $0 | $0 | View return |
| 2018 | Gilder Lehrman Institute of American History | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | San Antonio Parks Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Endangered Battlefield Defense Fund | 990EZ | Vice Chairman | 0.1 | $0 | $0 | View return |
| 2018 | Baylor College of Medicine | 990 | Trustee | 2 | $0 | $0 | View return |
| 2018 | National Park Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2018 | CIVIL War Preservation Trust | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | Lone Star Coastal Alliance | 990 | Director And Chair | 2 | $0 | $0 | View return |
| 2017 | Travels Revealing Understanding Trust Hope | 990EZ | Director | 1 | $0 | $0 | View return |
| 2017 | Congressional Sportsmen'S Foundation | 990 | Director | 4 | $0 | $0 | View return |
| 2017 | Houston Police Foundation | 990 | Director | 0.25 | $0 | $0 | View return |
| 2017 | John L Nau III Foundation | 990PF | President, Director | 1 | $0 | $0 | View return |
| 2017 | Admiral Nimitz Foundation | 990 | Director | 0.2 | $0 | $0 | View return |
| 2017 | Baylor College of Medicine | 990 | Trustee | 2 | $0 | $0 | View return |
| 2017 | National Park Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2017 | Endangered Battlefield Defense Fund | 990EZ | Vice Chairman | 0.1 | $0 | $0 | View return |
| 2017 | CIVIL War Preservation Trust | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | Gilder Lehrman Institute of American History | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | San Antonio Parks Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Travels Revealing Understanding Trust Hope | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Houston Police Foundation | 990 | Director | 0.25 | $0 | $0 | View return |
| 2016 | Endangered Battlefield Defense Fund | 990EZ | Vice Chairman | 0.1 | $0 | $0 | View return |
| 2016 | Lone Star Coastal Alliance | 990 | Director And Chair | 2 | $0 | $0 | View return |
| 2016 | John L Nau III Foundation | 990PF | President, Director | 1 | $0 | $0 | View return |
| 2016 | San Antonio Parks Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | The College Foundation of the University of Virginia | 990 | Appointed Trustee | 1 | $0 | $0 | View return |
| 2016 | Baylor College of Medicine | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2016 | National Park Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2016 | Gilder Lehrman Institute of American History | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | Nau Center for Texas Cultural Heritage Co Houston First Corporation | 990 | Chairman | 5 | $0 | $0 | View return |
| 2015 | Endangered Battlefield Defense Fund | 990EZ | Vice Chairman | 0.1 | $0 | $0 | View return |
| 2015 | Lone Star Coastal Alliance | 990 | Director And Chair | 2 | $0 | $0 | View return |
| 2015 | Travels Revealing Understanding Trust Hope | 990 | Director | 0 | $0 | $0 | View return |
| 2015 | San Antonio Parks Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Houston Police Foundation | 990 | Director | 0.5 | $0 | $0 | View return |
| 2015 | John L Nau III Foundation | 990PF | President, Director | 1 | $0 | $0 | View return |
| 2015 | Gilder Lehrman Institute of American History | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | The College Foundation of the University of Virginia | 990 | Appointed Trustee | 2 | $0 | $0 | View return |
| 2015 | Baylor College of Medicine | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | National Park Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2014 | Travels Revealing Understanding Trust Hope | 990 | Director | 0 | $0 | $0 | View return |
| 2014 | Houston Police Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2014 | John L Nau III Foundation | 990PF | President, Director | 1 | $0 | $0 | View return |
| 2014 | San Antonio Parks Foundation | 990 | Advisory Member | 1 | $0 | $0 | View return |
| 2014 | Lone Star Coastal Alliance | 990 | Director And Chair | 2 | $0 | $0 | View return |
| 2014 | Nau Center for Texas Cultural Heritage Co Houston First Corporation | 990 | Chairman | 5 | $0 | $0 | View return |
| 2014 | Texas State History Museum Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Baylor College of Medicine | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | The College Foundation of the University of Virginia | 990 | Appointed Trustee | 2 | $0 | $0 | View return |
| 2014 | National Park Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2014 | Gilder Lehrman Institute of American History | 990 | Board Member | 1 | $0 | $0 | View return |
| 2014 | The Texas State Historical Association | 990 | President | 1 | $0 | $0 | View return |
| 2014 | Discovery Green Conservancy | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Baylor College of Medicine | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | Endangered Battlefield Defense Fund | 990EZ | Vice Chairman | 0.3 | $0 | $0 | View return |
| 2013 | Nau Center for Texas Cultural Heritage Co Houston First Corporation | 990 | Chairman | 1 | $0 | $0 | View return |
| 2013 | Houston Police Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2013 | John L Nau III Foundation | 990PF | President, Director | 1 | $0 | $0 | View return |
| 2013 | Greater Houston Partnership Inc | 990 | Director | 1 | - | - | View return |
| 2013 | Gilder Lehrman Institute of American History | 990 | Board Member | 1 | $0 | $0 | View return |
| 2013 | Baylor College of Medicine | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2013 | The Texas State Historical Association | 990 | First Vice President | 1 | $0 | $0 | View return |
| 2013 | National Park Foundation | 990 | Vice Chair Emeritus | 5 | $0 | $0 | View return |
| 2013 | The College Foundation of the University of Virginia | 990 | Trustee | 2 | - | - | View return |
| 2012 | John L Nau III Foundation | 990PF | President, Director | 1 | $0 | $0 | View return |
| 2011 | John L Nau III Foundation | 990PF | President, Director | 1 | $0 | $0 | View return |
| 2010 | John L Nau III Foundation | 990PF | President, Director | 1 | $0 | $0 | View return |