| 2024 | Friends of the Forgotten | 990EZ | Pres/Director | 40 | $39,500 | - | View return |
| 2024 | The Doering Family Foundation Ltd. | 990PF | Former President | 0 | $0 | $0 | View return |
| 2024 | Jacksonville Sister Cities Association Inc | 990EZ | Nominations Committee Chair | 5 | $0 | - | View return |
| 2023 | Friends of the Forgotten | 990EZ | Pres/Director | 40 | $40,200 | - | View return |
| 2023 | Jacksonville Sister Cities Association Inc | 990EZ | Membership Hospitality | 5 | $0 | - | View return |
| 2022 | Friends of the Forgotten | 990EZ | Pres/Director | 40 | $39,400 | - | View return |
| 2022 | Jacksonville Sister Cities Association Inc | 990EZ | Executive VP | 5 | $0 | - | View return |
| 2021 | Friends of the Forgotten | 990EZ | Pres/Director | 40 | $37,800 | $6,000 | View return |
| 2021 | The Doering Family Foundation Ltd. | 990PF | President, Director | 1 | $0 | $0 | View return |
| 2021 | Jacksonville Sister Cities Association Inc | 990EZ | Executive VP | 5 | $0 | - | View return |
| 2020 | Friends of the Forgotten | 990EZ | Pres/Director | 40 | $36,675 | $5,000 | View return |
| 2020 | The Doering Family Foundation Ltd. | 990PF | President, Director | 1 | $0 | $0 | View return |
| 2020 | Jacksonville Sister Cities Association Inc | 990EZ | Executive VP | 5 | $0 | - | View return |
| 2019 | Friends of the Forgotten | 990EZ | President/Director | 40 | $0 | $0 | View return |
| 2019 | The Doering Family Foundation Ltd. | 990PF | President, Director | 2 | $0 | $0 | View return |
| 2019 | Jacksonville Sister Cities Association Inc | 990EZ | Executive Vice President | 15 | $0 | $0 | View return |
| 2018 | Friends of the Forgotten | 990EZ | President/Director | 40 | $37,740 | $13,456 | View return |
| 2018 | The Doering Family Foundation Ltd. | 990PF | President, Treasurer,Director | 2 | $0 | $0 | View return |
| 2018 | Jacksonville Sister Cities Association Inc | 990EZ | Vice President | 5 | $0 | - | View return |
| 2017 | Friends of the Forgotten | 990EZ | President/Director | 40 | $38,645 | $19,346 | View return |
| 2017 | The Doering Family Foundation Ltd. | 990PF | President, Treasurer,Director | 2 | $0 | $0 | View return |
| 2016 | Friends of the Forgotten | 990EZ | President/Director | 40 | $32,075 | $15,746 | View return |
| 2016 | American Institute of Physics Incorporated | 990 | Vice Chair | 10 | $2,000 | $0 | View return |
| 2016 | The Doering Family Foundation Ltd. | 990PF | President, Treasurer,Director | 2 | $0 | $0 | View return |
| 2015 | Friends of the Forgotten | 990EZ | President/Director | 40 | $29,900 | $13,591 | View return |
| 2015 | MID-Continent Railway Historical Society Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | American Institute of Physics Incorporated | 990 | Director | 4 | $0 | $0 | View return |
| 2015 | The Doering Family Foundation Ltd. | 990PF | President, Treasurer,Director | 2 | $0 | $0 | View return |
| 2014 | Friends of the Forgotten | 990EZ | President/Director | 40 | $22,053 | $13,793 | View return |
| 2014 | The Doering Family Foundation Ltd. | 990PF | President, Treasurer,Director | 2 | $0 | $0 | View return |
| 2014 | MID-Continent Railway Historical Society Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | American Institute of Physics Incorporated | 990 | Director | 2 | $0 | $0 | View return |
| 2013 | Friends of the Forgotten | 990EZ | President/Director | 40 | $18,917 | $12,965 | View return |
| 2013 | The Doering Family Foundation Ltd. | 990PF | President, Treasurer,Director | 2 | $0 | $0 | View return |
| 2013 | American Institute of Physics Incorporated | 990 | Director | 1 | $0 | $0 | View return |
| 2012 | The Doering Family Foundation Ltd. | 990PF | President, Treasurer,Director | 2 | $0 | $0 | View return |
| 2011 | The Doering Family Foundation Ltd. | 990PF | President, Treasurer,Director | 2 | $0 | $0 | View return |