In what sense? It's written correctly in the Wiki that the Joint Commission on Reconstruction handled the amendment, and the Wiki on that points out who were members:

The joint committee included nine members from the House, and six from the Senate. The House members were: Thaddeus Stevens (R-PA), Elihu Washburne (R-IL), Justin Morrill (R-VT), John A. Bingham (R-OH), Roscoe Conkling (R-NY), George Boutwell (R-MA), Henry Blow (R-MO), Henry Grider (D-KY), and Andrew Jackson Rogers (D-NJ). The Senate members were: William Fessenden (R-ME), James W. Grimes (R-IA), Jacob Howard (R-MI), George Henry Williams (R-OR), Ira Harris (R-NY), and Reverdy Johnson (D-MD).

All of this is correct, as far as the dissertation I'm reading is concerned. If you'd like information on who was most influential, that's another story entirely. In that event, I have recently been reading that dissertation, and it goes into some great detail on the subject. However, I'm not done with it yet, so I won't comment for sure unless I know that's what you're asking and I am further along in it :)!