| 2024 | Parks and Wildlife Foundation of Texas | 990 | Vice Chairman | 1 | $0 | $0 | View return |
| 2024 | The Don & Sybil Harrington | 990 | Chair | 1 | $0 | $0 | View return |
| 2024 | Decoursey Properties | 990 | Vice Chair | 1 | $0 | $0 | View return |
| 2023 | The Don & Sybil Harrington | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | The Buffalo Council Inc | 990 | Founder | 1 | $0 | $0 | View return |
| 2023 | Parks and Wildlife Foundation of Texas | 990 | Vice Chairman | 1 | $0 | $0 | View return |
| 2023 | Wildlife Association of Texas DBA Texas | 990 | Direct Emeritus | 0.3 | $0 | $0 | View return |
| 2023 | Decoursey Properties | 990 | Vice Chair | 1 | $0 | $0 | View return |
| 2023 | Lee Bivins Foundation | 990 | Vice Chairma | 1 | $0 | $0 | View return |
| 2023 | St Andrews Episcopal School | 990 | Trustee | - | $0 | $0 | View return |
| 2023 | Bivins Village Phase II | 990 | Vice-Chair | 0.5 | $0 | $0 | View return |
| 2023 | Bivins Village | 990 | Vice Chairma | 0.5 | $0 | $0 | View return |
| 2023 | Betty Bivins Childers Foundation | 990 | Vice Chairma | 0.5 | $0 | $0 | View return |
| 2023 | Mary E Bivins Foundation | 990 | Vice Chairma | 0.5 | $0 | $0 | View return |
| 2022 | Parks and Wildlife Foundation of Texas | 990 | Vice Chairman | 1 | $0 | $0 | View return |
| 2022 | The Buffalo Council Inc | 990 | Founder | - | $0 | $0 | View return |
| 2022 | Decoursey Properties | 990 | Vice Chair | 1 | $0 | $0 | View return |
| 2022 | The Don & Sybil Harrington | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Mary E Bivins Foundation | 990 | Vice Chairma | 0.5 | $0 | $0 | View return |
| 2022 | Wildlife Association of Texas DBA Texas | 990 | Director | 0.3 | $0 | $0 | View return |
| 2022 | Bivins Village Phase II | 990 | Vice-Chair | 0.5 | $0 | $0 | View return |
| 2022 | Betty Bivins Childers Foundation | 990 | Vice Chairma | 0.5 | $0 | $0 | View return |
| 2022 | Bivins Village | 990 | Vice Chairma | 0.5 | $0 | $0 | View return |
| 2022 | Lee Bivins Foundation | 990 | Vice Chairma | 1 | $0 | $0 | View return |
| 2022 | St Andrews Episcopal School | 990 | Trustee | - | $0 | $0 | View return |
| 2021 | Texas Agricultural Land Trust | 990 | Board Member | 2 | $0 | $0 | View return |
| 2021 | The Buffalo Council Inc | 990EZ | Founder | 0 | $0 | - | View return |
| 2021 | Decoursey Properties | 990 | Vice Chair | 1 | $0 | $0 | View return |
| 2021 | The Don & Sybil Harrington | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Wildlife Association of Texas DBA Texas | 990 | Director | 0.3 | $0 | $0 | View return |
| 2021 | St Andrews Episcopal School | 990 | Trustee | - | $0 | $0 | View return |
| 2021 | Parks and Wildlife Foundation of Texas | 990 | Vice-Chairman | 1 | $0 | $0 | View return |
| 2021 | Bivins Village Phase II | 990 | Director | 0.5 | $0 | $0 | View return |
| 2021 | Bivins Village | 990 | Director | 0.5 | $0 | $0 | View return |
| 2020 | The Buffalo Council Inc | 990EZ | Founder | 0 | $0 | - | View return |
| 2020 | The Don & Sybil Harrington | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Decoursey Properties | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Parks and Wildlife Foundation of Texas | 990 | Vice-Chairman | 1 | $0 | $0 | View return |
| 2020 | Harrington Cancer and Health | 990 | Director | 0.5 | $0 | $0 | View return |
| 2020 | Texas Agricultural Land Trust | 990 | Board Member | 2 | $0 | $0 | View return |
| 2020 | Wildlife Association of Texas DBA Texas | 990 | Director | 0.3 | $0 | $0 | View return |
| 2020 | St Andrews Episcopal School | 990 | Trustee | - | $0 | $0 | View return |
| 2020 | West Texas A&M Univ Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Mary E Bivins Trust | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2019 | The Don & Sybil Harrington | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Mary E Bivins Trust | 990PF | Trustee/Pt | 2 | $0 | $0 | View return |
| 2019 | Wildlife Association of Texas DBA Texas | 990 | Director | 0.3 | $0 | $0 | View return |
| 2019 | Texas Agricultural Land Trust | 990 | Board Member | 2 | $0 | $0 | View return |
| 2019 | Harrington Cancer and Health | 990 | Director | 0.5 | $0 | $0 | View return |
| 2019 | The Buffalo Council Inc | 990EZ | Founder | 0 | $0 | - | View return |
| 2019 | Parks and Wildlife Foundation of Texas | 990 | Vice-Chairman | 1 | $0 | $0 | View return |
| 2019 | Decoursey Properties | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | West Texas A&M Univ Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Wildlife Association of Texas DBA Texas | 990 | Director | 0.3 | $0 | $0 | View return |
| 2018 | Harrington Cancer and Health | 990 | Director | 0.5 | $0 | $0 | View return |
| 2018 | The Buffalo Council Inc | 990EZ | Founder | 0 | $0 | - | View return |
| 2018 | The Don & Sybil Harrington | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Texas Agricultural Land Trust | 990 | Board Member | 2 | $0 | $0 | View return |
| 2018 | Parks and Wildlife Foundation of Texas | 990 | Vice-Chairman | 1 | $0 | $0 | View return |
| 2018 | Mary E Bivins Trust | 990PF | Trustee/Pt | 2 | $0 | $0 | View return |
| 2018 | West Texas A&M Univ Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | West Texas A&M Univ Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | The Don & Sybil Harrington | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Texas Agricultural Land Trust | 990 | Board Member | 2 | $0 | $0 | View return |
| 2017 | Wildlife Association of Texas DBA Texas | 990 | Director | 0.3 | $0 | $0 | View return |
| 2017 | Parks and Wildlife Foundation of Texas | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | Hcf Supporting Organization | 990 | Chairman | - | $0 | $0 | View return |
| 2017 | Harrington Cancer and Health | 990 | Chairman | 1 | $0 | $0 | View return |
| 2017 | Mary E Bivins Trust | 990PF | Trustee/Pt | 0 | $0 | $0 | View return |
| 2017 | Harrington Cancer and Health | 990 | Chairman | 1 | $0 | $0 | View return |
| 2017 | West Texas A&M Univ Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2017 | National Skeet Shooting Association Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2016 | Texas Agricultural Land Trust | 990 | Board Member | 2 | $0 | $0 | View return |
| 2016 | Parks and Wildlife Foundation of Texas | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | Hcf Supporting Organization | 990 | Vice-Chairma | - | $0 | $0 | View return |
| 2016 | The Don & Sybil Harrington | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Harrington Cancer and Health | 990 | Vice-Chairma | 1 | $0 | $0 | View return |
| 2016 | Wildlife Association of Texas DBA Texas | 990 | Director | 0.3 | $0 | $0 | View return |
| 2016 | Mary E Bivins Trust | 990PF | Trustee/Pt | 0 | $0 | $0 | View return |
| 2016 | West Texas A&M Univ Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2015 | The Don & Sybil Harrington | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Harrington Cancer and Health | 990 | Director | 0.5 | $0 | $0 | View return |
| 2015 | Wildlife Association of Texas DBA Texas | 990 | Director | 0.3 | $0 | $0 | View return |
| 2015 | Parks and Wildlife Foundation of Texas | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | Texas Agricultural Land Trust | 990 | Board Member | 2 | $0 | $0 | View return |
| 2015 | Mary E Bivins Trust | 990PF | Trustee/Pt | 2 | $0 | $0 | View return |
| 2015 | West Texas A&M Univ Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2014 | Parks and Wildlife Foundation of Texas | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | The Don & Sybil Harrington | 990 | Secretary/Treasurer | 1 | $0 | $0 | View return |
| 2014 | Taking Care of Texas | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Wildlife Association of Texas DBA Texas | 990 | Director | 0.3 | $0 | $0 | View return |
| 2014 | Mary E Bivins Trust | 990PF | Trustee/Pt | 2 | $0 | $0 | View return |
| 2014 | West Texas A&M Univ Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2013 | Taking Care of Texas | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Parks and Wildlife Foundation of Texas | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | The Don & Sybil Harrington | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Wildlife Association of Texas DBA Texas | 990 | Director | 0.3 | $0 | $0 | View return |
| 2013 | West Texas A&M Univ Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2013 | Mary E Bivins Trust | 990PF | Trustee/Pt | 2 | $0 | $0 | View return |
| 2012 | Mary E Bivins Trust | 990PF | Trustee/Pt | 2 | $0 | $0 | View return |
| 2011 | Mary E Bivins Trust | 990PF | Trustee/Pt | 2 | $0 | $0 | View return |