| 2025 | The Brass Family Foundation | 990PF | Treasurer | 4 | $0 | $0 | View return |
| 2025 | The Brass Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2024 | The Brass Family Foundation | 990PF | Treasurer | 4 | $0 | $0 | View return |
| 2024 | The Brass Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2024 | Matson Halverson Christiansen Hamilton Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2023 | Matson Halverson Christiansen Hamilton Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2023 | The Brass Family Foundation | 990PF | Treasurer | 4 | $0 | $0 | View return |
| 2023 | The Brass Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2022 | The Brass Family Foundation | 990PF | Treasurer | 4 | $0 | $0 | View return |
| 2022 | The Brass Family Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2022 | Matson Halverson Christiansen Hamilton Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2021 | Matson Halverson Christiansen Hamilton Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2021 | The Brass Family Foundation | 990PF | Treasurer | 4 | $0 | $0 | View return |
| 2021 | The Brass Family Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2020 | The Brass Family Foundation | 990PF | Treasurer | 4 | $0 | $0 | View return |
| 2020 | The Brass Family Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2020 | Matson Halverson Christiansen Hamilton Foundation | 990PF | Secretary | 2 | $0 | $0 | View return |
| 2020 | South Dakota School of Mines and Technology Foundation | 990 | Member At La | 1 | $0 | $0 | View return |
| 2020 | South Dakota School of Mines Alumni | 990 | Co-President | 0 | $0 | $0 | View return |
| 2019 | Matson Halverson Christiansen Hamilton Foundation | 990PF | Secretary | 2 | $0 | $0 | View return |
| 2019 | The Brass Family Foundation | 990PF | Treasurer | 4 | $0 | $0 | View return |
| 2019 | The Brass Family Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2019 | South Dakota School of Mines Alumni | 990 | Co-President | 1 | $0 | $0 | View return |
| 2018 | The Brass Family Foundation | 990PF | Treasurer | 4 | $0 | $0 | View return |
| 2018 | The Brass Family Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2018 | Matson Halverson Christiansen Hamilton Foundation | 990PF | Secretary | 2 | $0 | $0 | View return |
| 2018 | South Dakota School of Mines Alumni | 990 | Co-President | 1 | $0 | $0 | View return |
| 2017 | The Brass Family Foundation | 990PF | Treasurer | 4 | $0 | $0 | View return |
| 2017 | The Brass Family Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2017 | Matson Halverson Christiansen Hamilton Foundation | 990PF | Secretary | 2 | $0 | $0 | View return |
| 2016 | The Brass Family Foundation | 990PF | Treasurer | 4 | $0 | $0 | View return |
| 2016 | The Brass Family Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2016 | Matson Halverson Christiansen Hamilton Foundation | 990PF | Secretary | 2 | $0 | $0 | View return |
| 2015 | The Brass Family Foundation | 990PF | Treasurer | 4 | $0 | $0 | View return |
| 2015 | The Brass Family Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2015 | Matson Halverson Christiansen Hamilton Foundation | 990PF | Secretary | 2 | $0 | $0 | View return |
| 2014 | Matson Halverson Christiansen Hamilton Foundation | 990PF | Secretary | 2 | $0 | $0 | View return |
| 2014 | The Brass Family Foundation | 990PF | Treasurer | 4 | $0 | $0 | View return |
| 2014 | The Brass Family Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2013 | The Brass Family Foundation | 990PF | Treasurer | 4 | $0 | $0 | View return |
| 2013 | The Brass Family Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2012 | The Brass Family Foundation | 990PF | Treasurer | 4 | $0 | $0 | View return |
| 2012 | The Brass Family Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2012 | Matson Halverson Christiansen Hamilton Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2011 | The Brass Family Foundation | 990PF | Secretary/Treasurer | 4 | $0 | $0 | View return |
| 2011 | The Brass Family Foundation | 990PF | Officer | 1 | $0 | $0 | View return |
| 2010 | The Brass Family Foundation | 990PF | Secretary/Treasurer | 4 | $0 | $0 | View return |
| 2010 | The Brass Family Foundation | 990PF | Officer | 1 | $0 | $0 | View return |