| 2024 | Linn County Advocate Inc | 990 | Board Member | 0.5 | $0 | $0 | View return |
| 2024 | Prairie School Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2023 | Sumpter Valley Railroad Restoration Inc. | 990 | Treasurer | 5 | $0 | $0 | View return |
| 2023 | Sumpter Valley Railroad Restoration Inc. | 990 | Treasurer | 5 | $0 | $0 | View return |
| 2023 | Prairie School Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2023 | Herbert Hoover Presidential Library Association Inc | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2022 | Sumpter Valley Railroad Restoration Inc. | 990 | Director | 3 | $0 | $0 | View return |
| 2022 | Sumpter Valley Railroad Restoration Inc. | 990 | Director | 3 | $0 | $0 | View return |
| 2022 | Prairie School Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2022 | Herbert Hoover Presidential Library Association Inc | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2021 | Prairie School Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2021 | Sumpter Valley Railroad Restoration Inc. | 990 | Director | 3 | $0 | $0 | View return |
| 2021 | Sumpter Valley Railroad Restoration Inc. | 990 | Director | 3 | $0 | $0 | View return |
| 2021 | Herbert Hoover Presidential Library Association Inc | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2020 | Sumpter Valley Railroad Restoration Inc. | 990 | Director | 3 | $0 | $0 | View return |
| 2020 | Prairie School Foundation | 990 | President | 0 | $0 | $0 | View return |
| 2020 | Herbert Hoover Presidential Library Association Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2019 | Sumpter Valley Railroad Restoration Inc. | 990 | Director | 3 | $0 | $0 | View return |
| 2019 | Clinton Regional Development Corporation | 990 | Secretary | 1 | $0 | $0 | View return |
| 2019 | Prairie School Foundation | 990 | President | 0 | $0 | $0 | View return |
| 2019 | Herbert Hoover Presidential Library Association Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | Clinton Regional Development Corporation | 990 | Secretary | 1 | $0 | $0 | View return |
| 2018 | Prairie School Foundation | 990 | President | 0 | $0 | $0 | View return |
| 2018 | Herbert Hoover Presidential Library Association Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | Clinton Regional Development Corporation | 990 | Secretary | 2 | $0 | $0 | View return |
| 2017 | Prairie School Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2017 | Herbert Hoover Presidential Library Association Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | Clinton Regional Development Corporation | 990 | Secretary | 2 | $0 | $0 | View return |
| 2016 | Prairie School Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2015 | Clinton Regional Development Corporation | 990 | Director | 2 | $0 | $0 | View return |
| 2015 | Prairie School Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2014 | Prairie School Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2014 | Clinton Regional Development Corporation | 990 | Chair | 5 | $0 | $0 | View return |
| 2013 | Prairie School Foundation | 990 | Director | 0 | $0 | $0 | View return |