| 2024 | Winslow Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2024 | Gladstone Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | Blanchard Cemetery Association | 990 | Superintendent | 20 | $0 | $0 | View return |
| 2023 | Gladstone Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Winslow Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2022 | Margie Hiestand Foundation Inc | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2022 | Gladstone Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Winslow Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2022 | Lucas County Agricultural Society | 990 | Treasurer | 3 | $0 | $0 | View return |
| 2021 | Gladstone Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Margie Hiestand Foundation Inc | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2021 | Winslow Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2021 | Lucas County Agricultural Society | 990 | Treasurer | 3 | $0 | $0 | View return |
| 2020 | Gladstone Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Margie Hiestand Foundation Inc | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2020 | Winslow Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2020 | Lucas County Agricultural Society | 990 | Treasurer | 3 | $0 | $0 | View return |
| 2019 | Winslow Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2019 | Lucas County Agricultural Society | 990 | Treasurer | 3 | $0 | $0 | View return |
| 2018 | Winslow Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2017 | Winslow Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2017 | San Francisco Opera Association | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Winslow Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2016 | Margie Hiestand Foundation Inc | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2016 | San Francisco Opera Association | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Winslow Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2015 | Margie Hiestand Foundation Inc | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2015 | San Francisco Opera Association | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Margie Hiestand Foundation Inc | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2014 | Blanchard Cemetery Association | 990 | Superintendent | 30 | $0 | $0 | View return |
| 2014 | Winslow Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2014 | San Francisco Opera Association | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Margie Hiestand Foundation Inc | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2013 | Winslow Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2013 | San Francisco Opera Association | 990 | Director | 1 | $0 | $0 | View return |
| 2012 | Margie Hiestand Foundation Inc | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2012 | Winslow Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2011 | Margie Hiestand Foundation Inc | 990PF | Vice President | 2 | $0 | $0 | View return |
| 2010 | Margie Hiestand Foundation Inc | 990PF | Vice President | 2 | $0 | $0 | View return |