| 2025 | Dempsey Family Foundation | 990PF | Deputy Director | 0 | $0 | $0 | View return |
| 2024 | South Dakota Retailers Association Educational Trust Fund | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | W R Grace Foundation Inc. | 990PF | Annual Report Signer | 1 | $0 | $0 | View return |
| 2024 | South Dakota Retailers Association | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | Dempsey Family Foundation | 990PF | Deputy Director | 0 | $0 | $0 | View return |
| 2023 | South Dakota Retailers Association Educational Trust Fund | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | W R Grace Foundation Inc. | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2023 | South Dakota Retailers Association | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Friends of Marblehead Hockey Inc. | 990 | Treasureer & Director | 15 | $0 | $0 | View return |
| 2023 | W R Grace & Co Employees Disaster Relief Foundation Inc | 990EZ | Secretary | 1 | $0 | $0 | View return |
| 2023 | Dempsey Family Foundation | 990PF | Deputy Director | 0 | $0 | $0 | View return |
| 2023 | Hillbrook School | 990 | Secretary | 2 | $0 | $0 | View return |
| 2023 | Dover Childrens Home Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2023 | Watertown Area Chamber of Commerce | 990 | Past Chairman | 0 | $0 | $0 | View return |
| 2023 | Peninsula Open Space Trust | 990 | Director | 3 | $0 | $0 | View return |
| 2022 | South Dakota Retailers Association Educational Trust Fund | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | W R Grace & Co Employees Disaster Relief Foundation Inc | 990EZ | Secretary | 1 | $0 | $0 | View return |
| 2022 | Friends of Marblehead Hockey Inc. | 990EZ | Treasurer | 15 | $0 | $0 | View return |
| 2022 | Dempsey Family Foundation | 990PF | Deputy Director | 0 | $0 | $0 | View return |
| 2022 | Hillbrook School | 990 | Secretary | 2 | $0 | $0 | View return |
| 2022 | South Dakota Retailers Association | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | W R Grace Foundation Inc. | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2022 | Watertown Area Chamber of Commerce | 990 | Past Chairman | 0 | $0 | $0 | View return |
| 2022 | Peninsula Open Space Trust | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Friends of Marblehead Hockey Inc. | 990EZ | Treasurer | 15 | $0 | $0 | View return |
| 2021 | Dempsey Family Foundation | 990PF | Deputy Director | 0 | $0 | $0 | View return |
| 2021 | Hillbrook School | 990 | Secretary | 2 | $0 | $0 | View return |
| 2021 | W R Grace Foundation Inc. | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2021 | W R Grace & Co Employees Disaster Relief Foundation Inc | 990 | Assistant Secretary | 1 | $0 | $0 | View return |
| 2021 | South Dakota Retailers Association | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Peninsula Open Space Trust | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | W R Grace Foundation Inc. | 990PF | Assistant Secretary | 1 | $0 | $0 | View return |
| 2020 | W R Grace & Co Employees Disaster Relief Foundation Inc | 990 | Assistant Secretary | 1 | $0 | $0 | View return |
| 2020 | Friends of Marblehead Hockey Inc. | 990EZ | Treasurer | 15 | $0 | $0 | View return |
| 2020 | South Dakota Retailers Association | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Dempsey Family Foundation | 990PF | Deputy Director | 0 | $0 | $0 | View return |
| 2020 | Hillbrook School | 990 | Chair, Campus & Finance (Start 01/21) | 2 | $0 | $0 | View return |
| 2020 | Watertown Area Chamber of Commerce | 990 | Executive At Large | 0 | $0 | $0 | View return |
| 2019 | W R Grace Foundation Inc. | 990PF | Assistant Secretary | 1 | $0 | $0 | View return |
| 2019 | Hillbrook School | 990 | Trustee And Secretary | 2 | $0 | $0 | View return |
| 2019 | Dempsey Family Foundation | 990PF | Deputy Director | 0 | $0 | $0 | View return |
| 2019 | Peninsula Open Space Trust | 990 | Director | 3 | $0 | $0 | View return |
| 2019 | South Dakota Retailers Association | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Friends of Marblehead Hockey Inc. | 990EZ | Treasurer | 15 | $0 | $0 | View return |
| 2019 | Watertown Area Chamber of Commerce | 990 | Executive At Large | 2 | $0 | $0 | View return |
| 2018 | W R Grace Foundation Inc. | 990PF | Assistant Secretary | 1 | $0 | $0 | View return |
| 2018 | Dempsey Family Foundation | 990PF | Deputy Director | 0 | $0 | $0 | View return |
| 2018 | Hillbrook School | 990 | Trustee And Secretary | 2 | $0 | $0 | View return |
| 2018 | Friends of Marblehead Hockey Inc. | 990EZ | Treasurer | 15 | $0 | $0 | View return |
| 2018 | Peninsula Open Space Trust | 990 | Director | 3 | $0 | $0 | View return |
| 2018 | Watertown Area Chamber of Commerce | 990 | Executive Member At Large | 1 | $0 | $0 | View return |
| 2017 | Friends of Marblehead Hockey Inc. | 990EZ | Treasurer | 15 | $0 | $0 | View return |
| 2017 | Hillbrook School | 990 | Secretary (Start 7/17) | 2 | $0 | $0 | View return |
| 2017 | Dempsey Family Foundation | 990PF | Deputy Director | 0 | $0 | $0 | View return |
| 2017 | W R Grace Foundation Inc. | 990PF | Assistant Secretary | 1 | $0 | $0 | View return |
| 2017 | Watertown Area Chamber of Commerce | 990 | Executive Member At Large | 1 | $0 | $0 | View return |
| 2016 | W R Grace Foundation Inc. | 990PF | Assistant Secretary | 1 | $0 | $0 | View return |
| 2016 | Hillbrook School | 990 | Trustee | 2 | $0 | $0 | View return |
| 2016 | Friends of Marblehead Hockey Inc. | 990EZ | Treasurer | 15 | $0 | $0 | View return |
| 2016 | Dempsey Family Foundation | 990PF | Deputy Director | 0 | $0 | - | View return |
| 2016 | Peninsula Open Space Trust | 990 | Director | 3 | $0 | $0 | View return |
| 2016 | Watertown Area Chamber of Commerce | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Friends of Marblehead Hockey Inc. | 990EZ | Treasurer | 15 | $0 | $0 | View return |
| 2015 | Dempsey Family Foundation | 990PF | Deputy Director | 0 | $0 | - | View return |
| 2015 | Peninsula Open Space Trust | 990 | Director | 2 | $0 | $0 | View return |
| 2014 | Friends of Marblehead Hockey Inc. | 990EZ | Treasurer | 15 | $0 | $0 | View return |
| 2014 | The Beach Club Inc the Beach Club Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Peninsula Open Space Trust | 990 | Director | 2 | $0 | $0 | View return |
| 2013 | The Beach Club Inc the Beach Club Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Friends of Marblehead Hockey Inc. | 990EZ | Treasurer | 15 | $0 | $0 | View return |