Abraham Lincoln/ Allen C. Guelzo (EDT)/ Richard Beeman (EDT)
(1)
Allen C. Guelzo/ Brian Holsopple (NRT)
(1)
Allen C. Guelzo/ Edward Lewis (NRT)
(1)
Allen C. Guelzo/ Michael Lind (FRW)
(1)
Brian R. Dirck (EDT)/ Allen C. Guelzo (FRW)
(1)
Harry V. Jaffa/ Allen C. Guelzo (FRW)
(1)
Joseph R. Fornieri (EDT)/ Sara Vaughn Gabbard (EDT)/ Allen C. Guelzo (CON)
(1)
Joseph R. Fornieri (EDT)/ Sara Vaughn Gabbard (EDT)/ Herman Belz (CON)/ Allen C. Guelzo (CON)/ Harold Holzer (CON)
(1)
Marvin R. O'Connell/ Mark A. Noll (EDT)/ Nathan O. Hatch (EDT)/ Allen C. Guelzo (EDT)
(1)
Randall M. Miller (EDT)/ Allen C. Guelzo (AFT)
(1)