| 2025 | Keeneland Library and Museum Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2025 | Keeneland Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2024 | Keeneland Library and Museum Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2024 | Keeneland Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2024 | Thoroughbred Owners & Breeders Association Inc | 990 | Vice Chairman | 1 | $0 | $0 | View return |
| 2024 | Russell and Willene Dobson Foundation | 990PF | President | 0.1 | $0 | $0 | View return |
| 2024 | Oklahoma Golf Hall of Fame Foundation | 990EZ | Board Member | 0.5 | $0 | $0 | View return |
| 2024 | Dobson Family Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2023 | Keeneland Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2023 | Keeneland Library and Museum Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2023 | Dobson Family Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2023 | Oklahoma Golf Hall of Fame Foundation | 990EZ | Board Member | 1 | $0 | $0 | View return |
| 2023 | Scott and Kim Verplank Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | National Cowboy and Western Heritage Museum Inc. | 990 | Secretary | 1 | $0 | $0 | View return |
| 2023 | Russell and Willene Dobson Foundation | 990PF | President | 0.1 | $0 | $0 | View return |
| 2022 | Keeneland Library and Museum Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2022 | Keeneland Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2022 | National Cowboy and Western Heritage Museum Inc. | 990 | Secretary | 1 | $0 | $0 | View return |
| 2022 | Scott and Kim Verplank Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Russell and Willene Dobson Foundation | 990PF | President | 0.5 | $0 | $0 | View return |
| 2022 | Oklahoma Golf Hall of Fame Foundation | 990EZ | Board Member | 1 | $0 | $0 | View return |
| 2022 | Dobson Family Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2021 | Keeneland Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2021 | Keeneland Library and Museum Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2021 | National Cowboy and Western Heritage Museum Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Russell and Willene Dobson Foundation | 990PF | President | 0.5 | $0 | $0 | View return |
| 2021 | Dobson Family Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2021 | Scott and Kim Verplank Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Thoroughbred Owners & Breeders Association Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2021 | Oklahoma Golf Hall of Fame Foundation | 990EZ | Board Member | 1 | $0 | $0 | View return |
| 2020 | Keeneland Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2020 | National Cowboy and Western Heritage Museum Inc. | 990 | Secretary | 1 | $0 | $0 | View return |
| 2020 | Thoroughbred Owners & Breeders Association Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | Scott and Kim Verplank Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Russell and Willene Dobson Foundation | 990PF | President | 0.5 | $0 | $0 | View return |
| 2020 | Southwestern Oklahoma State University Foundation Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | Dobson Family Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2020 | Oklahoma Golf Hall of Fame Foundation | 990EZ | Board Member | 1 | $0 | - | View return |
| 2019 | Russell and Willene Dobson Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2019 | Thoroughbred Owners & Breeders Association Inc | 990 | Vice Chairman | 1 | $0 | $0 | View return |
| 2019 | Oklahoma Golf Hall of Fame Foundation | 990EZ | Board Member | 0 | $0 | - | View return |
| 2019 | Scott and Kim Verplank Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | National Cowboy and Western Heritage Museum Inc. | 990 | Secretary | 1 | $0 | $0 | View return |
| 2019 | Southwestern Oklahoma State University Foundation Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Dobson Family Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2018 | National Cowboy and Western Heritage Museum Inc. | 990 | Secretary | 1 | $0 | $0 | View return |
| 2018 | Southwestern Oklahoma State University Foundation Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | Scott and Kim Verplank Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Thoroughbred Owners & Breeders Association Inc | 990 | Vice Chairman | 1 | $0 | $0 | View return |
| 2017 | Scott and Kim Verplank Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Thoroughbred Owners & Breeders Association Inc | 990 | Vice Chairman | 1 | $0 | $0 | View return |
| 2017 | National Cowboy and Western Heritage Museum Inc. | 990 | Secretary | 1 | $0 | $0 | View return |
| 2017 | Southwestern Oklahoma State University Foundation Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | Thoroughbred Owners & Breeders Association Inc | 990 | Vice Chairman | 1 | $0 | $0 | View return |
| 2016 | National Cowboy and Western Heritage Museum Inc. | 990 | Immediate Past Chairman | 1 | $0 | $0 | View return |
| 2016 | Southwestern Oklahoma State University Foundation Inc. | 990 | 2nd Vice Chair | 1 | $0 | $0 | View return |
| 2015 | National Cowboy and Western Heritage Museum Inc. | 990 | Immediate Past Chairman | 1 | $0 | $0 | View return |
| 2015 | Thoroughbred Owners & Breeders Association Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | National Cowboy and Western Heritage Museum Inc. | 990 | Immediate Past Chairman | 1 | $0 | $0 | View return |
| 2014 | Thoroughbred Owners & Breeders Association Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | Scott and Kim Verplank Foundation | 990PF | Director | 0 | $0 | - | View return |
| 2013 | Thoroughbred Owners & Breeders Association Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | National Cowboy and Western Heritage Museum Inc. | 990 | Chairman | 1 | $0 | $0 | View return |
| 2013 | Scott and Kim Verplank Foundation | 990PF | Director | 0 | $0 | - | View return |
| 2012 | Scott and Kim Verplank Foundation | 990PF | Director | 0 | $0 | - | View return |