The following book and articles contain information about James Calhoun:

With Custer in '74: James Calhoun's Diary of the Black Hills Expedition

Cover Art: "Sgt. Butler, Capt. Keogh, & Lt. Calhoun at Fort Lincoln" • Little Big Horn Associates Newsletter, Vol. XVIII, No. 2, February 1984

Cover Photograph: James Calhoun, Tom Custer and Tom McDougall, courtesy of the Collection of Chet Nelson • Little Big Horn Associates Newsletter, Vol. XXVIII, No. 5, July 1994

"James Calhoun to Custer" by Alice O'Neil " • Little Big Horn Associates Newsletter, Vol. XXXIII, No. 9, November 1999