| 2024 | Donald C and Elizabeth M Dickinson Foundation | 990PF | CEO | 2 | $0 | $0 | View return |
| 2024 | American Federation of State County & Municipal Employees | 990EZ | President | 6 | $0 | - | View return |
| 2024 | Quail Botanical Gardens Foundation | 990 | Trustee | 2 | $0 | $0 | View return |
| 2023 | Donald C and Elizabeth M Dickinson Foundation | 990PF | CEO | 0 | $0 | $0 | View return |
| 2023 | Quail Botanical Gardens Foundation | 990 | Trustee | 2 | $0 | $0 | View return |
| 2022 | Donald C and Elizabeth M Dickinson Foundation | 990PF | President | 2 | $0 | $0 | View return |
| 2022 | Quail Botanical Gardens Foundation | 990 | Trustee | 2 | $0 | $0 | View return |
| 2021 | Donald C and Elizabeth M Dickinson Foundation | 990PF | President | 2 | $0 | $0 | View return |
| 2021 | Quail Botanical Gardens Foundation | 990 | Vice Chair | 5 | $0 | $0 | View return |
| 2020 | Quail Botanical Gardens Foundation | 990 | Vice Chair | 5 | $0 | $0 | View return |
| 2020 | Donald C and Elizabeth M Dickinson Foundation | 990PF | President | 2 | $0 | $0 | View return |
| 2020 | Cowboy Hall of Fame Affiliated Fund of O | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2019 | Quail Botanical Gardens Foundation | 990 | Vice Chair | 5 | $0 | $0 | View return |
| 2019 | Donald C and Elizabeth M Dickinson Foundation | 990PF | President | 2 | $0 | $0 | View return |
| 2019 | Cowboy Hall of Fame Affiliated Fund of O | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2018 | Rotary Club of Gainesville Foundation Inc. | 990 | Director | 0 | $0 | $0 | View return |
| 2018 | Donald C and Elizabeth M Dickinson Foundation | 990PF | President | 2 | $0 | $0 | View return |
| 2018 | Quail Botanical Gardens Foundation | 990 | Vice Chair | 5 | $0 | $0 | View return |
| 2018 | Cowboy Hall of Fame Affiliated Fund of O | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2017 | Donald C and Elizabeth M Dickinson Foundation | 990PF | President | 2 | $0 | $0 | View return |
| 2017 | Quail Botanical Gardens Foundation | 990 | Vice Chair | 5 | $0 | $0 | View return |
| 2017 | National Cowboy and Western Heritage Museum Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Donald C and Elizabeth M Dickinson Foundation | 990PF | President | 0 | $0 | $0 | View return |
| 2016 | National Cowboy and Western Heritage Museum Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Rotary Club of Gainesville Foundation Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Environmental Law Institute Inc. | 990 | VP Development | 37.5 | $118,816 | $0 | View return |
| 2015 | National Cowboy and Western Heritage Museum Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Donald C and Elizabeth M Dickinson Foundation | 990PF | President | 2 | $0 | $0 | View return |
| 2015 | Rotary Club of Gainesville Foundation Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Environmental Law Institute Inc. | 990 | VP Development | 37.5 | $118,986 | $0 | View return |
| 2014 | Donald C and Elizabeth M Dickinson Foundation | 990PF | President | 2 | $0 | $0 | View return |
| 2014 | Rotary Club of Gainesville Foundation Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | National Cowboy and Western Heritage Museum Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Donald C and Elizabeth M Dickinson Foundation | 990PF | President | 2 | $0 | $0 | View return |
| 2013 | Environmental Law Institute Inc. | 990 | VP Development | 37.5 | $118,383 | - | View return |
| 2013 | Rotary Club of Gainesville Foundation Inc. | 990EZ | Director | 1 | $0 | $0 | View return |
| 2013 | National Cowboy and Western Heritage Museum Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Donald C and Elizabeth M Dickinson Foundation | 990PF | President | 2 | $0 | $0 | View return |
| 2012 | Donald C and Elizabeth M Dickinson Foundation | 990PF | President | 2 | $0 | $0 | View return |
| 2011 | Donald C and Elizabeth M Dickinson Foundation | 990PF | President | 2 | $0 | $0 | View return |
| 2010 | Donald C and Elizabeth M Dickinson Foundation | 990PF | President | 2 | $0 | $0 | View return |