| 2025 | Ramser Arboretum | 990PF | President | 2 | $0 | - | View return |
| 2024 | Ramser Arboretum | 990PF | President | 5 | $0 | - | View return |
| 2024 | Woodward Development Corporation | 990 | Trustee | 0 | $0 | $0 | View return |
| 2024 | Knox County Historical Society | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2023 | Knox County Historical Society | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2023 | Woodward Development Corporation | 990 | Trustee | 0 | $0 | $0 | View return |
| 2023 | Ramser Arboretum | 990PF | President | 5 | $0 | - | View return |
| 2022 | Woodward Development Corporation | 990 | Trustee | 0 | $0 | $0 | View return |
| 2022 | Knox County Historical Society | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2022 | Ramser Arboretum | 990PF | President | 5 | $0 | - | View return |
| 2021 | Ramser Arboretum | 990PF | President | 5 | $0 | - | View return |
| 2021 | Knox County Historical Society | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2021 | Woodward Development Corporation | 990 | Trustee | 0 | $0 | $0 | View return |
| 2020 | Knox County Historical Society | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2020 | Ramser Arboretum | 990PF | President | 5 | $0 | - | View return |
| 2020 | Woodward Development Corporation | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2019 | Woodward Development Corporation | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2019 | Ramser Arboretum | 990PF | President | 5 | $0 | - | View return |
| 2019 | Knox County Historical Society | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2018 | Knox County Historical Society | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2018 | Ramser Arboretum | 990PF | President | 5 | $0 | - | View return |
| 2018 | Woodward Development Corporation | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2017 | Knox County Historical Society | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2017 | Ramser Arboretum | 990PF | President | 5 | $0 | - | View return |
| 2017 | Woodward Development Corporation | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2016 | Ramser Arboretum | 990PF | President | 5 | $0 | - | View return |
| 2016 | Knox County Historical Society | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2016 | Woodward Development Corporation | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2015 | Woodward Development Corporation | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2015 | Knox County Historical Society | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2014 | Knox County Historical Society | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2014 | Woodward Development Corporation | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2013 | Knox County Historical Society | 990 | Trustee | 0.5 | $0 | $0 | View return |