| 2021 | The G Kenneth and Ann Baum Philanthropic Fund | 990PF | Class A Trustee | 1 | $0 | $0 | View return |
| 2021 | Blue River Land Trust Ltd | 990EZ | Chair | 2 | $0 | $0 | View return |
| 2021 | Walnut Ridge Land Trust II Ltd. | 990PF | Director | 1 | $0 | $0 | View return |
| 2021 | Walnut Ridge Land Trust III Ltd. | 990PF | Director | 1 | $0 | $0 | View return |
| 2020 | William Rockhill Nelson Trust | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2020 | Blue River Land Trust Ltd | 990EZ | Chair | 2 | $0 | $0 | View return |
| 2020 | Walnut Ridge Land Trust II Ltd. | 990PF | Director | 1 | $0 | $0 | View return |
| 2020 | The George K Baum Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2020 | Walnut Ridge Land Trust III Ltd. | 990PF | Director | 1 | $0 | $0 | View return |
| 2020 | The G Kenneth and Ann Baum Philanthropic Fund | 990PF | Class A Trustee | 1 | $0 | $0 | View return |
| 2019 | William Rockhill Nelson Trust | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2019 | Walnut Ridge Land Trust III Ltd. | 990PF | Director | 1 | $0 | $0 | View return |
| 2019 | The G Kenneth and Ann Baum Philanthropic Fund | 990PF | Class A Trustee | 1 | $0 | $0 | View return |
| 2019 | The George K Baum Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2019 | Walnut Ridge Land Trust II Ltd. | 990PF | Director | 1 | $0 | $0 | View return |
| 2019 | Blue River Land Trust Ltd | 990EZ | Chair | 2 | $0 | $0 | View return |
| 2019 | Umkc Foundation | 990 | Emeritus Director | 1 | $0 | $0 | View return |
| 2019 | The Nelson Gallery Foundation | 990 | Trustee | 1 | $0 | $0 | View return |
| 2019 | Umkc Foundation | 990 | Emeritus Director | 1 | $0 | $0 | View return |
| 2018 | William Rockhill Nelson Trust | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2018 | Walnut Ridge Land Trust II Ltd. | 990PF | Director | 1 | $0 | $0 | View return |
| 2018 | Walnut Ridge Land Trust III Ltd. | 990PF | Director | 1 | $0 | $0 | View return |
| 2018 | The George K Baum Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2018 | The Nelson Gallery Foundation | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | Umkc Foundation | 990 | Emeritus Director | 1 | $0 | $0 | View return |
| 2017 | William Rockhill Nelson Trust | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2017 | The George K Baum Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2017 | The Nelson Gallery Foundation | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | Umkc Foundation | 990 | Emeritus Director | 1 | $0 | $0 | View return |
| 2016 | The George K Baum Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2016 | The Nelson Gallery Foundation | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | The G Kenneth and Ann Baum Philanthropic Fund | 990PF | Class A Trustee | 1 | $0 | - | View return |
| 2015 | The Nelson Gallery Foundation | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | The George K Baum Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2014 | The Nelson Gallery Foundation | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | The G Kenneth and Ann Baum Philanthropic Fund | 990 | Class A Trustee | 1 | $0 | $0 | View return |
| 2014 | George K Baum Family Foundation | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | George K Baum Family Foundation | 990 | Trustee | 1 | $0 | $0 | View return |