| 1 | Oba C. Herschberger | Sullivan, IL | | Jun 30 2005 |
| 2 | Nebergall Bros. | Arcadia, IN | Jun 28 2005 | Jun 30 2005 |
| 3 | John O. Herschberger | Leesburg, IN | Dec 01 2005 | Dec 09 2005 |
| 4 | Duane O. Herschberger | Milan, MO | Feb 24 2006 | Apr 07 2006 |
| 5 | Oba C. Herschberger | Sullivan, IL | Jan 16 2008 | Jan 29 2008 |
| 6 | Aaron Mosher &/or Jim Ahart | Prophetstown, IL | Aug 21 2008 | Aug 30 2008 |
| 7 | James T. or James K. Ahart | Dow City, IA | Apr 15 2012 | May 03 2012 |
| 8 | James Ahart &/or Joseph Yoder | Arcola, IL | May 03 2015 | May 07 2015 |
| 9 | Joseph E. Yoder | Arcola, IL | May 12 2016 | May 27 2016 |
| 10 | Oba C. Herschberger | Sullivan, IL | Feb 14 2020 | Mar 23 2020 |
