| 2024 | Iowa Taxpayers Association | 990 | Board Member | 1 | $0 | $0 | View return |
| 2024 | The Montana Taxpayers' Association | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | Taxpayers' Federation of Illinois | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | Taxpayers' Federation of Illinois | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | Iowa Taxpayers Association | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | California Taxpayers Association | 990 | Director | 0.5 | $0 | $0 | View return |
| 2023 | The Montana Taxpayers' Association | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Taxpayers' Federation of Illinois | 990 | Trustee | 1 | $0 | $0 | View return |
| 2022 | California Taxpayers Association | 990 | Director | 0.5 | $0 | $0 | View return |
| 2022 | Iowa Taxpayers Association | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Minnesota Center for Fiscal Excellence | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | The Montana Taxpayers' Association | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | California Taxpayers Association | 990 | Director | 0.5 | $0 | $0 | View return |
| 2021 | Iowa Taxpayers Association | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Minnesota Center for Fiscal Excellence | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Taxpayers' Federation of Illinois | 990 | Trustee | 1 | $0 | $0 | View return |
| 2021 | The Montana Taxpayers' Association | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | California Taxpayers Association | 990 | Director | 0.5 | $0 | $0 | View return |
| 2020 | Iowa Taxpayers Association | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Minnesota Center for Fiscal Excellence | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Taxpayers' Federation of Illinois | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | The Montana Taxpayers' Association | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | California Taxpayers Association | 990 | Director | 0.5 | $0 | $0 | View return |
| 2019 | Minnesota Center for Fiscal Excellence | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Taxpayers' Federation of Illinois | 990 | Trustee | 1 | $0 | $0 | View return |
| 2019 | Iowa Taxpayers Association | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | The Montana Taxpayers' Association | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Taxpayers' Federation of Illinois | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | Iowa Taxpayers Association | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Minnesota Center for Fiscal Excellence | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | The Montana Taxpayers' Association | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Minnesota Center for Fiscal Excellence | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Iowa Taxpayers Association | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Taxpayers' Federation of Illinois | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | The Montana Taxpayers' Association | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Minnesota Center for Fiscal Excellence | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Taxpayers' Federation of Illinois | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | Iowa Taxpayers Association | 990 | Director | 5 | $0 | $0 | View return |
| 2016 | The Montana Taxpayers' Association | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Iowa Taxpayers Association | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Minnesota Center for Fiscal Excellence | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Taxpayers' Federation of Illinois | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | The Montana Taxpayers' Association | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Minnesota Center for Fiscal Excellence | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Taxpayers' Federation of Illinois | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | The Montana Taxpayers' Association | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Taxpayers' Federation of Illinois | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | Minnesota Center for Fiscal Excellence | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | The Montana Taxpayers' Association | 990 | Director | 1 | $0 | $0 | View return |