- Amos Sutton Hayden,
1850-1856 - James A. Garfield,
1857-1863 (While listed to 1863, he was inactive after 1861) - Harvey W. Everest,
1861-1864 (Pro Tem) - C. W. Heywood,
1864-1865 (Acting) - Adoniram J. Thomson,
1865-1866 (Managing) - John M. Atwater,
1866-1867