| 2024 | Marlin Cole and Connie Belin Charitable Foundation | 990PF | Secretary/Tr | 40 | $73,127 | $0 | View return |
| 2024 | The Iowa Foundation for Education Environment and the Arts | 990PF | Secretary/Tr | 1 | $44,346 | $0 | View return |
| 2023 | Marlin Cole and Connie Belin Charitable Foundation | 990PF | Secretary/Treasurer | 1 | $51,875 | $0 | View return |
| 2023 | The Iowa Foundation for Education Environment and the Arts | 990PF | Secretary/Treasurer | 1 | $36,040 | $0 | View return |
| 2023 | The Russell Library Company | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2022 | Marlin Cole and Connie Belin Charitable Foundation | 990PF | Secretary/Treasurer | 1 | $50,203 | $0 | View return |
| 2022 | The Iowa Foundation for Education Environment and the Arts | 990PF | Secretary/Treasurer | 1 | $47,543 | $0 | View return |
| 2022 | The Russell Library Company | 990 | Trustee | 0 | $0 | $0 | View return |
| 2021 | The Iowa Foundation for Education Environment and the Arts | 990PF | Secretary/Treasurer | 1 | $57,097 | $0 | View return |
| 2021 | Marlin Cole and Connie Belin Charitable Foundation | 990PF | Secretary/Treasurer | 1 | $54,503 | $0 | View return |
| 2020 | Marlin Cole and Connie Belin Charitable Foundation | 990PF | Secretary/Treasurer | 1 | $48,380 | $0 | View return |
| 2020 | The Iowa Foundation for Education Environment and the Arts | 990PF | Secretary/Treasurer | 1 | $46,505 | $0 | View return |
| 2019 | Marlin Cole and Connie Belin Charitable Foundation | 990PF | Secretary/Treasurer | 1 | $48,497 | $0 | View return |
| 2019 | The Iowa Foundation for Education Environment and the Arts | 990PF | Secretary/Treasurer | 1 | $48,373 | $0 | View return |
| 2018 | Marlin Cole and Connie Belin Charitable Foundation | 990PF | Secretary/Treasurer | 1 | $54,055 | $0 | View return |
| 2018 | The Iowa Foundation for Education Environment and the Arts | 990PF | Secretary/Treasurer | 1 | $53,544 | $0 | View return |
| 2017 | The Iowa Foundation for Education Environment and the Arts | 990PF | Secretary/Treasurer | 1 | $56,554 | $0 | View return |
| 2017 | Marlin Cole and Connie Belin Charitable Foundation | 990PF | Secretary/Treasurer | 1 | $56,339 | $0 | View return |
| 2016 | The Iowa Foundation for Education Environment and the Arts | 990PF | Secretary/Treasurer | 1 | $54,885 | $0 | View return |
| 2016 | Marlin Cole and Connie Belin Charitable Foundation | 990PF | Secretary/Treasurer | 1 | $52,651 | $0 | View return |
| 2015 | The Iowa Foundation for Education Environment and the Arts | 990PF | Secretary/Treasurer | 1 | $57,258 | $0 | View return |
| 2015 | Marlin Cole and Connie Belin Charitable Foundation | 990PF | Secretary/Treasurer | 1 | $54,592 | $0 | View return |
| 2014 | Marlin Cole and Connie Belin Charitable Foundation | 990PF | Secretary/Treasurer | 1 | $65,063 | $0 | View return |
| 2014 | The Iowa Foundation for Education Environment and the Arts | 990PF | Secretary/Treasurer | 1 | $64,842 | $0 | View return |
| 2013 | The Iowa Foundation for Education Environment and the Arts | 990PF | Secretary/Treasurer | 1 | $69,813 | $0 | View return |
| 2013 | Marlin Cole and Connie Belin Charitable Foundation | 990PF | Secretary/Treasurer | 1 | $66,937 | $0 | View return |
| 2012 | The Iowa Foundation for Education Environment and the Arts | 990PF | Secretary/Treasurer | 1 | $74,044 | $0 | View return |
| 2012 | Marlin Cole and Connie Belin Charitable Foundation | 990PF | Secretary/Treasurer | 1 | $70,696 | $0 | View return |
| 2011 | The Iowa Foundation for Education Environment and the Arts | 990PF | Secretary/Treasurer | 1 | $87,141 | $0 | View return |
| 2011 | Marlin Cole and Connie Belin Charitable Foundation | 990PF | Secretary/Treasurer | 1 | $76,447 | $0 | View return |
| 2010 | The Iowa Foundation for Education Environment and the Arts | 990PF | Secretary/Treasure | 1 | $72,848 | $0 | View return |
| 2010 | Marlin Cole and Connie Belin Charitable Foundation | 990PF | Secretary/Treasurer | 1 | $59,556 | $0 | View return |