February 4, 1864
Frederick A. Whitfield
June 30, 1862
Joseph R. Layton
Franklin Buchanan
Robert M. G. Brown
Edwin M. Hart
William T. Whitmore
April 28, 1863
John Rodgers
Henry C. Meade
John Meyer
1862-1864
William Y. Evans
Philip H. W. Fontane
William R. Taylor
William B. McKean
Thomas J. W. Cooper
Charles S. Hunt
December 18, 1864
Augustus L. Case
John H. Burchmore