| 2024 | National Recreation Foundation Inc C/O Sophia B Twichell | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2024 | Lucas Museum of Narrative Art | 990PF | Director | 1 | $0 | $0 | View return |
| 2023 | National Recreation Foundation Inc C/O Sophia B Twichell | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2023 | Lucas Museum of Narrative Art | 990PF | Director | 1 | $0 | $0 | View return |
| 2022 | National Recreation Foundation Inc C/O Sophia B Twichell | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2022 | Lucas Museum of Narrative Art | 990PF | Director | 1 | $0 | $0 | View return |
| 2022 | Chicago Humanities Festival | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | National Recreation Foundation Inc C/O Sophia B Twichell | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2021 | Chicago Humanities Festival | 990 | Vice Chair | 1 | $0 | $0 | View return |
| 2021 | Lucas Museum of Narrative Art | 990PF | Director | 1 | $0 | $0 | View return |
| 2020 | National Recreation Foundation Inc C/O Sophia B Twichell | 990PF | Trustee/Pres/Past Chair (11/6/20) | 5 | $0 | $0 | View return |
| 2020 | Chicago Humanities Festival | 990 | Vice Chair | 1 | $0 | $0 | View return |
| 2020 | Lucas Museum of Narrative Art | 990PF | Director | 1 | $0 | $0 | View return |
| 2020 | Window to the World Communications Inc. | 990 | Board Member - Trustee Emeritus | 0.65 | $0 | $0 | View return |
| 2019 | National Recreation Foundation Inc C/O Sophia B Twichell | 990PF | President | 1 | $0 | $0 | View return |
| 2019 | Chicago Humanities Festival | 990 | Vice Chair | 1 | $0 | $0 | View return |
| 2019 | Chicago Humanities Festival | 990 | Vice Chair | 1 | $0 | $0 | View return |
| 2019 | Iptay | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | National Recreation Foundation Inc C/O Sophia B Twichell | 990PF | President (11/4/18-12/31/18) | 1 | $0 | $0 | View return |
| 2018 | Iptay | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Chicago Humanities Festival | 990 | Vice Chair | 1 | $0 | $0 | View return |
| 2017 | National Recreation Foundation Inc C/O Sophia B Twichell | 990PF | First Vice President | 1 | $0 | $0 | View return |
| 2017 | Chicago Humanities Festival | 990 | Vice Chair | 1 | $0 | $0 | View return |
| 2017 | Iptay | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | National Recreation Foundation Inc C/O Sophia B Twichell | 990PF | First Vice President | 1 | $0 | $0 | View return |
| 2016 | Indian Waters Council Ita | 990 | Board Member | 1 | $0 | $0 | View return |
| 2016 | National Recreation Foundation Inc C/O Sophia B Twichell | 990PF | First Vice President | 1 | $0 | $0 | View return |
| 2015 | National Recreation Foundation Inc C/O Sophia B Twichell | 990PF | Second Vice President | 1 | $0 | $0 | View return |
| 2015 | Indian Waters Council Boy Scouts of America Inc | 990 | Board Member | 1 | $0 | $0 | View return |
| 2015 | Indian Waters Council Ita | 990 | Board Member | 1 | $0 | $0 | View return |
| 2014 | Field Museum of Natural History | 990 | Former Pres, Emeritus (See Sched O) | 0 | $208,348 | $0 | View return |
| 2014 | National Recreation Foundation Inc C/O Sophia B Twichell | 990PF | Second Vice President | 1 | $0 | $0 | View return |
| 2014 | Indian Waters Council Ita | 990 | Board Member | 1 | $0 | $0 | View return |
| 2014 | Indian Waters Council Boy Scouts of America Inc | 990 | Board Member | 1 | $0 | $0 | View return |
| 2013 | Field Museum of Natural History | 990 | Former Pres. Emeritus (See Sched O) | 0 | $536,334 | $0 | View return |
| 2013 | Chicago Cultural Mile Association Inc | 990EZ | Director | 1 | $0 | - | View return |
| 2013 | National Recreation Foundation Inc C/O Sophia B Twichell | 990PF | Second Vice President | 1 | $0 | $0 | View return |
| 2013 | Unknown Organization | 990 | Director | 1 | - | - | View return |