| 2024 | Joseph & May Winston Foundation | 990PF | President | 3 | $0 | $0 | View return |
| 2023 | Joseph & May Winston Foundation | 990PF | President | 3 | $0 | $0 | View return |
| 2022 | Joseph & May Winston Foundation | 990PF | President | 0 | $0 | $0 | View return |
| 2021 | The Bozena and Josef Zelenda Foundation | 990PF | Director | 0 | $12,500 | $0 | View return |
| 2021 | Joseph & May Winston Foundation | 990PF | President | 0 | $0 | $0 | View return |
| 2020 | The Bozena and Josef Zelenda Foundation | 990PF | Director | 0 | $15,000 | $0 | View return |
| 2020 | Joseph & May Winston Foundation | 990PF | President | 0 | $0 | $0 | View return |
| 2020 | Schulz Charitable Foundation Inc | 990PF | President | 0 | $0 | $0 | View return |
| 2019 | The Bozena and Josef Zelenda Foundation | 990PF | Director | 3 | $12,500 | $0 | View return |
| 2019 | Schulz Charitable Foundation Inc | 990PF | President | 2 | $12,000 | $0 | View return |
| 2019 | Joseph & May Winston Foundation | 990PF | President | 0 | $0 | $0 | View return |
| 2018 | The Bozena and Josef Zelenda Foundation | 990PF | Director | 3 | $12,500 | $0 | View return |
| 2018 | Schulz Charitable Foundation Inc | 990PF | President | 2 | $12,000 | $0 | View return |
| 2018 | Joseph & May Winston Foundation | 990PF | President | 3 | $6,000 | $0 | View return |
| 2017 | The Bozena and Josef Zelenda Foundation | 990PF | Director | 3 | $10,000 | $0 | View return |
| 2017 | Joseph & May Winston Foundation | 990PF | President | 3 | $9,000 | $0 | View return |
| 2017 | Schulz Charitable Foundation Inc | 990PF | President | 2 | $2,750 | $0 | View return |
| 2016 | The Bozena and Josef Zelenda Foundation | 990PF | Director | 3 | $12,500 | $0 | View return |
| 2016 | Schulz Charitable Foundation Inc | 990PF | President | 2 | $11,000 | $0 | View return |
| 2016 | Joseph & May Winston Foundation | 990PF | President | 0 | $3,000 | $0 | View return |
| 2015 | The Bozena and Josef Zelenda Foundation | 990PF | Director | 3 | $12,500 | $0 | View return |
| 2015 | Schulz Charitable Foundation Inc | 990PF | President | 2 | $11,000 | $0 | View return |
| 2015 | Joseph & May Winston Foundation | 990PF | President | 5 | $9,000 | $0 | View return |
| 2014 | The Bozena and Josef Zelenda Foundation | 990PF | Director | 3 | $10,000 | $0 | View return |
| 2014 | Schulz Charitable Foundation Inc | 990PF | President | 2 | $0 | $0 | View return |
| 2013 | Schulz Charitable Foundation Inc | 990PF | President | 2 | $4,988 | - | View return |
| 2012 | Schulz Charitable Foundation Inc | 990PF | President | 2 | $5,197 | - | View return |
| 2011 | Schulz Charitable Foundation Inc | 990PF | President | 2 | $4,785 | - | View return |