| 2024 | Donald D Hammill Foundation | 990PF | Director | 0.25 | $2,500 | $0 | View return |
| 2023 | Donald D Hammill Foundation | 990PF | Director | 0.75 | $2,500 | $0 | View return |
| 2023 | Hammill Institute on Disabilities | 990 | President/Treasurer/Direct | 0.5 | $1,500 | $0 | View return |
| 2022 | Donald D Hammill Foundation | 990PF | Director | 2 | $2,500 | $0 | View return |
| 2022 | Hammill Institute on Disabilities | 990 | President/Treasurer/Director | 10 | $1,500 | $0 | View return |
| 2021 | Donald D Hammill Foundation | 990PF | Director | 2 | $2,500 | $0 | View return |
| 2021 | Hammill Institute on Disabilities | 990 | President/Director | 10 | $1,500 | $0 | View return |
| 2020 | Donald D Hammill Foundation | 990PF | Director | 2 | $2,500 | $0 | View return |
| 2020 | Hammill Institute on Disabilities | 990 | President/Director | 10 | $1,500 | $0 | View return |
| 2019 | Donald D Hammill Foundation | 990PF | Director | 2 | $2,500 | $0 | View return |
| 2019 | Hammill Institute on Disabilities | 990 | President/Director | 10 | $1,500 | $0 | View return |
| 2018 | Donald D Hammill Foundation | 990PF | Director | 2 | $2,500 | $0 | View return |
| 2018 | Hammill Institute on Disabilities | 990 | President/Director | 10 | $1,500 | $0 | View return |
| 2017 | Donald D Hammill Foundation | 990PF | Director | 2 | $2,500 | $0 | View return |
| 2017 | Hammill Institute on Disabilities | 990 | President/Director | 10 | $1,500 | $0 | View return |
| 2016 | Donald D Hammill Foundation | 990PF | Director | 2 | $2,500 | $0 | View return |
| 2016 | Hammill Institute on Disabilities | 990 | President/Director | 10 | $1,500 | $0 | View return |
| 2015 | Donald D Hammill Foundation | 990PF | Director | 2 | $2,500 | $0 | View return |
| 2015 | Hammill Institute on Disabilities | 990 | President/Director | 10 | $1,500 | $0 | View return |
| 2014 | Donald D Hammill Foundation | 990PF | Director | 2 | $0 | $0 | View return |
| 2014 | Hammill Institute on Disabilities | 990 | President/Director | 10 | $0 | $0 | View return |
| 2013 | Hammill Institute on Disabilities | 990 | President/Director | 10 | $0 | $0 | View return |
| 2013 | Donald D Hammill Foundation | 990PF | Director | 2 | $0 | $0 | View return |
| 2012 | Donald D Hammill Foundation | 990PF | President Thru 2/28/12 | 5 | $0 | $0 | View return |
| 2011 | Donald D Hammill Foundation | 990PF | President/Director | 5 | $0 | $0 | View return |
| 2010 | Donald D Hammill Foundation | 990PF | President/Director | 5 | $0 | $0 | View return |