| 2025 | Gum Creek Water Supply Corp | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | John & Diane Prewitt Family Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2024 | John & Diane Prewitt Family Foundation | 990PF | Pres/Director | 1 | $0 | $0 | View return |
| 2024 | Texas Motor Transportation Association | 990 | Alternate Ata State Vice President | 2 | $0 | $0 | View return |
| 2024 | Gum Creek Water Supply Corp | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | John & Diane Prewitt Family Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2023 | John & Diane Prewitt Family Foundation | 990PF | Pres/Director | 1 | $0 | $0 | View return |
| 2023 | Gum Creek Water Supply Corp | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Texas Motor Transportation Association | 990 | Immediate Past-Chair | 2 | $0 | $0 | View return |
| 2023 | Texas Cuc Aggregation Project Inc | 990 | Secretary/Treasurer | 2 | $0 | $0 | View return |
| 2022 | Texas Motor Transportation Association | 990 | Chairman | 2 | $0 | $0 | View return |
| 2022 | John & Diane Prewitt Family Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2022 | John & Diane Prewitt Family Foundation | 990PF | Pres/Director | 1 | $0 | $0 | View return |
| 2022 | Gum Creek Water Supply Corp | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Gum Creek Water Supply Corp | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | John & Diane Prewitt Family Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2021 | John & Diane Prewitt Family Foundation | 990PF | Pres/Director | 1 | $0 | $0 | View return |
| 2021 | Texas Motor Transportation Association | 990 | Chair-Elect | 2 | $0 | $0 | View return |
| 2020 | Texas Motor Transportation Association | 990 | Secretary-Treasurer | 2 | $0 | $0 | View return |
| 2020 | John & Diane Prewitt Family Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2020 | John & Diane Prewitt Family Foundation | 990PF | Pres/Director | 1 | $0 | $0 | View return |
| 2020 | Gum Creek Water Supply Corp | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | John & Diane Prewitt Family Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2019 | John & Diane Prewitt Family Foundation | 990PF | Pres/Director | 1 | $0 | $0 | View return |
| 2019 | Gum Creek Water Supply Corp | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Dalton Golf and Country Club Inc | 990 | Director | - | $0 | $0 | View return |
| 2019 | Texas Motor Transportation Association | 990 | Alternate Ata State Vice President | 2 | $0 | $0 | View return |
| 2018 | Gum Creek Water Supply Corp | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | John & Diane Prewitt Family Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2018 | John & Diane Prewitt Family Foundation | 990PF | Pres/Director | 1 | $0 | $0 | View return |
| 2018 | Texas Motor Transportation Association | 990 | Vice Chairman-At-Large | 2 | $0 | $0 | View return |
| 2018 | International Association of Lions Clubs | 990EZ | Past Dist Gov | 5 | $0 | $0 | View return |
| 2018 | Dalton Golf and Country Club Inc | 990 | Director | - | $0 | $0 | View return |
| 2017 | John & Diane Prewitt Family Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2017 | John & Diane Prewitt Family Foundation | 990PF | Pres/Director | 1 | $0 | $0 | View return |
| 2017 | Gum Creek Water Supply Corp | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Dalton Golf and Country Club Inc | 990 | Director | - | $0 | $0 | View return |
| 2017 | Texas Motor Transportation Association | 990 | Vice Chairman-At-Large | 2 | $0 | $0 | View return |
| 2016 | John & Diane Prewitt Family Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2016 | John & Diane Prewitt Family Foundation | 990PF | Pres/Director | 1 | $0 | $0 | View return |
| 2016 | Gum Creek Water Supply Corp | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Gum Creek Water Supply Corp | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | John & Diane Prewitt Family Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2015 | John & Diane Prewitt Family Foundation | 990PF | Pres/Director | 1 | $0 | $0 | View return |
| 2014 | John & Diane Prewitt Family Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2014 | John & Diane Prewitt Family Foundation | 990PF | Pres/Director | 1 | $0 | $0 | View return |
| 2014 | Gum Creek Water Supply Corp | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | John & Diane Prewitt Family Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2013 | John & Diane Prewitt Family Foundation | 990PF | Pres/Director | 1 | $0 | $0 | View return |
| 2013 | Gum Creek Water Supply Corp | 990 | Director | 1 | $0 | $0 | View return |
| 2012 | John & Diane Prewitt Family Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2012 | John & Diane Prewitt Family Foundation | 990PF | Pres/Director | 1 | $0 | $0 | View return |
| 2011 | John & Diane Prewitt Family Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2011 | John & Diane Prewitt Family Foundation | 990PF | Pres/Director | 1 | $0 | $0 | View return |
| 2010 | John & Diane Prewitt Family Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2010 | John & Diane Prewitt Family Foundation | 990PF | Pres/Director | 1 | $0 | $0 | View return |