| 2025 | Gregory Wade Mcgrew Foundation | 990PF | Sec/Treas | 1 | $0 | $0 | View return |
| 2024 | Gregory Wade Mcgrew Foundation | 990PF | Sec/Treas | 1 | $0 | $0 | View return |
| 2024 | Claire Falkenstein Foundation | 990PF | President | 0 | $0 | $0 | View return |
| 2024 | Rocky Mountain Coal Mining Institute | 990 | Director | 0 | $0 | $0 | View return |
| 2024 | Texas Mining and Reclamation Association | 990 | Chair | 2 | $0 | $0 | View return |
| 2023 | Claire Falkenstein Foundation | 990PF | President | 0 | $0 | $0 | View return |
| 2023 | Texas Mining and Reclamation Association | 990 | Chair | 2 | $0 | $0 | View return |
| 2023 | Rocky Mountain Coal Mining Institute | 990 | Director | 0 | $0 | $0 | View return |
| 2023 | Gregory Wade Mcgrew Foundation | 990PF | Sec/Treas | 0 | $0 | $0 | View return |
| 2022 | Rocky Mountain Coal Mining Institute | 990 | Director | 0 | $0 | $0 | View return |
| 2022 | Claire Falkenstein Foundation | 990PF | Officer | 0 | $0 | $0 | View return |
| 2022 | Gregory Wade Mcgrew Foundation | 990PF | Sec/Treas | 0 | $0 | $0 | View return |
| 2022 | Texas Mining and Reclamation Association | 990 | Vice Chair | 2 | $0 | $0 | View return |
| 2021 | Texas Mining and Reclamation Association | 990 | Treasurer | 2 | $0 | $0 | View return |
| 2021 | Claire Falkenstein Foundation | 990PF | Officer | 0 | $0 | $0 | View return |
| 2021 | Gregory Wade Mcgrew Foundation | 990PF | Sec/Treas | 2 | $0 | $0 | View return |
| 2020 | Gregory Wade Mcgrew Foundation | 990PF | Sec/Treas | 2 | $0 | $0 | View return |
| 2020 | Texas Mining and Reclamation Association | 990 | Secretary | 2 | $0 | $0 | View return |
| 2019 | Gregory Wade Mcgrew Foundation | 990PF | Sec/Treas | 2 | $0 | $0 | View return |
| 2019 | Texas Mining and Reclamation Association | 990 | Board Member | 1 | $0 | $0 | View return |
| 2018 | Gregory Wade Mcgrew Foundation | 990PF | Sec/Treas | 2 | $0 | $0 | View return |
| 2017 | Gregory Wade Mcgrew Foundation | 990PF | Secretary/Tr | 2 | $0 | $0 | View return |
| 2016 | Gregory Wade Mcgrew Foundation | 990PF | Secretary/Tr | 2 | $0 | $0 | View return |
| 2015 | Gregory Wade Mcgrew Foundation | 990PF | Secretary/Tr | 2 | $0 | $0 | View return |
| 2014 | Gregory Wade Mcgrew Foundation | 990PF | Secretary/Treasurer | 2 | $0 | $0 | View return |
| 2014 | Association of Environmental and Engineering Geologists (Aeg) | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Gregory Wade Mcgrew Foundation | 990PF | Secretary/Treasurer | 2 | $0 | $0 | View return |
| 2012 | Gregory Wade Mcgrew Foundation | 990PF | Secretary/Treasurer | 2 | $0 | $0 | View return |
| 2011 | Gregory Wade Mcgrew Foundation | 990PF | Secretary/Treasurer | 2 | $0 | $0 | View return |
| 2010 | Gregory Wade Mcgrew Foundation | 990PF | Secretary/Treasurer | 2 | $0 | $0 | View return |