| 2025 | Karl and Mildred Niekamp Charitable Foundation | 990PF | Trustee | 1.5 | $16,968 | $0 | View return |
| 2024 | Karl and Mildred Niekamp Charitable Foundation | 990PF | Trustee | 1.5 | $15,419 | $0 | View return |
| 2024 | San Fernando Valley Hospitals & Institutions Committee Inc. | 990EZ | Director | 5 | $0 | $0 | View return |
| 2024 | Green Pond First Aid Squad Inc | 990EZ | Treasurer | 4 | $0 | $0 | View return |
| 2024 | River Valley Counseling Center Inc. | 990 | Clerk | 0.5 | $0 | $0 | View return |
| 2023 | Karl and Mildred Niekamp Charitable Foundation | 990PF | Trustee | 1.5 | $15,580 | $0 | View return |
| 2023 | San Fernando Valley Hospitals & Institutions Committee Inc. | 990EZ | Director | 0 | $0 | $0 | View return |
| 2023 | Green Pond First Aid Squad Inc | 990EZ | Treasurer | 4 | $0 | $0 | View return |
| 2022 | Karl and Mildred Niekamp Charitable Foundation | 990PF | Trustee | 1.5 | $16,867 | $0 | View return |
| 2022 | San Fernando Valley Hospitals & Institutions Committee Inc. | 990EZ | Director | 0 | $0 | $0 | View return |
| 2022 | East Longmeadow Veterans Memorial Committee | 990EZ | Treasurer | 10 | $0 | $0 | View return |
| 2022 | Green Pond First Aid Squad Inc | 990EZ | Treasurer | 4 | $0 | $0 | View return |
| 2022 | San Antonio Museum of Art | 990 | Trustee | 0 | $0 | $0 | View return |
| 2022 | San Antonio Museum of Art | 990 | Trustee | 0 | $0 | $0 | View return |
| 2021 | Matthew 25 Thrift Shop | 990 | Board Member | 5 | $0 | $0 | View return |
| 2021 | East Longmeadow Veterans Memorial Committee | 990EZ | Treasurer | 10 | $0 | - | View return |
| 2021 | San Antonio Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | The Childrens Home of Wheeling Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2020 | Matthew 25 Thrift Shop | 990 | Board Member | 5 | $0 | $0 | View return |
| 2020 | The Hundred Club of Connecticut Inc | 990 | Secretary | 1 | $0 | $0 | View return |
| 2020 | East Longmeadow Veterans Memorial Committee | 990EZ | Treasurer | 10 | $0 | - | View return |
| 2020 | San Antonio Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2019 | The Childrens Home of Wheeling Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2019 | Orchard Park Resources Inc. | 990 | Vice President | 1 | $0 | $0 | View return |
| 2019 | Matthew 25 Thrift Shop | 990 | Board Member | 5 | $0 | $0 | View return |
| 2019 | The Childrens Home of Wheeling Foundation Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | The Hundred Club of Connecticut Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | San Antonio Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | The Childrens Home of Wheeling Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2018 | Matthew 25 Thrift Shop | 990 | Board Member | 5 | $0 | $0 | View return |
| 2018 | The Childrens Home of Wheeling Foundation Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Orchard Park Resources Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | San Antonio Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | The Childrens Home of Wheeling Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2017 | Orchard Park Resources Inc. | 990 | Vice President | 1 | $0 | $0 | View return |
| 2017 | The Childrens Home of Wheeling Foundation Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Matthew 25 Thrift Shop | 990 | Board Member | 5 | $0 | $0 | View return |
| 2017 | San Antonio Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | The Childrens Home of Wheeling Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2016 | Orchard Park Resources Inc. | 990 | Vice President | 1 | $0 | $0 | View return |
| 2016 | The Childrens Home of Wheeling Foundation Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Matthew 25 Thrift Shop | 990 | Board Member | 5 | $0 | $0 | View return |
| 2016 | San Antonio Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | The Childrens Home of Wheeling Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2015 | Novi Educational Foundation | 990 | Vice President | 5 | $0 | $0 | View return |
| 2015 | Matthew 25 Thrift Shop | 990 | Board Member | 5 | $0 | $0 | View return |
| 2015 | Orchard Park Resources Inc. | 990 | Vice President | 1 | $0 | $0 | View return |
| 2015 | The Childrens Home of Wheeling Foundation Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | San Antonio Museum of Art | 990 | Trustee | 2 | $0 | $0 | View return |
| 2014 | The Childrens Home of Wheeling Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2014 | Orchard Park Resources Inc. | 990 | Vice President | 1 | $0 | $0 | View return |
| 2014 | The Childrens Home of Wheeling Foundation Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Matthew 25 Thrift Shop | 990 | Board Member | 0 | $0 | $0 | View return |
| 2013 | The Childrens Home of Wheeling Foundation Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Home Fashion Products Association | 990 | Board Member | 0 | $0 | $0 | View return |
| 2013 | Orchard Park Resources Inc. | 990 | Vice President | 1 | $0 | $0 | View return |