| 2023 | Charles H Dater Foundation Inc. | 990PF | President/Secretary/Direct | 15 | $50,000 | $9,500 | View return |
| 2023 | Landen Family Foundation Inc. | 990PF | Treasurer | 0.5 | $0 | $0 | View return |
| 2022 | Charles H Dater Foundation Inc. | 990PF | President/Secretary/Direct | 15 | $50,000 | $9,500 | View return |
| 2022 | Landen Family Foundation Inc. | 990PF | Treasurer | 0.5 | $0 | $0 | View return |
| 2021 | Charles H Dater Foundation Inc. | 990PF | President/Secretary/Direct | 15 | $50,000 | $9,500 | View return |
| 2021 | Landen Family Foundation Inc. | 990PF | Treasurer | 0.5 | $0 | $0 | View return |
| 2020 | Charles H Dater Foundation Inc. | 990PF | President/Secretary/Direct | 15 | $50,000 | $9,500 | View return |
| 2020 | Landen Family Foundation Inc. | 990PF | Treasurer | 0.5 | $0 | $0 | View return |
| 2019 | Charles H Dater Foundation Inc. | 990PF | President/Secretary/Direct | 15 | $50,000 | $9,500 | View return |
| 2019 | Landen Family Foundation Inc. | 990PF | Treasurer | 0.5 | $0 | $0 | View return |
| 2018 | Charles H Dater Foundation Inc. | 990PF | President/Secretary/Direct | 15 | $50,000 | $9,500 | View return |
| 2018 | Landen Family Foundation Inc. | 990PF | Treasurer | 0.5 | $0 | $0 | View return |
| 2017 | Charles H Dater Foundation Inc. | 990PF | President/Secretary/Direct | 15 | $50,000 | $9,500 | View return |
| 2017 | Landen Family Foundation Inc. | 990PF | Treasurer | 0.5 | $0 | $0 | View return |
| 2016 | Charles H Dater Foundation Inc. | 990PF | President/Secretary/Direct | 15 | $50,000 | $9,500 | View return |
| 2016 | Landen Family Foundation Inc. | 990PF | Treasurer | 0.5 | $0 | $0 | View return |
| 2015 | Charles H Dater Foundation Inc. | 990PF | President/Secretary/Direct | 15 | $50,000 | $9,500 | View return |
| 2015 | Landen Family Foundation Inc. | 990PF | Treasurer | 0.5 | $0 | $0 | View return |
| 2014 | Landen Family Foundation Inc. | 990PF | Treasurer | 0.5 | $0 | $0 | View return |
| 2013 | Landen Family Foundation Inc. | 990PF | Treasurer | 0.5 | $0 | $0 | View return |