The following publications contain information about John J. Crittenden:
Article: "Ghosts on the Little Bighorn" by Robert Paul Jordan • After a 1983 prairie fire cleared brush along Montana's Little Bighorn River, archaeologists recovered artifacts that shed new light on Custer's Last Stand. Robert Paul Jordan reports on the still controversial 1876 battle. Photographs by Scott Rutherford • The National Geographic Magazine • December 1986.
Article: "Lt. Crittenden: Striving for the Soldier's Life" by Jerry Cecil • Intelligent and courageous, Crittenden scrapped his way to an Army commission, only to die in his first battle. • Greasy Grass, Journal of the Custer Battlefield Historical & Museum Association • Vol. 11 • May 1995.
Article: "Researching the Tale of Lt. Crittenden's Pocket Watch" by Jerry Cecil • Four years after Crittenden's death, his pocket watch was returned to his parents. • Greasy Grass, Journal of the Custer Battlefield Historical & Museum Association • Vol. 11 • May 1995.
Book: After Custer: Loss and Transformation in Sioux Country by Paul L. Hedren (Norman: University of Oklahoma Press) 2011, pp. 179 and 181.
Article: "From the Battle of Little Big Horn to KHS: An Artifact's Journey" by Deb Van Horn, Registrar, Kentucky Historical Society • https://history.ky.gov/2015/09/28/artifacts-journey/ • Undated.
Article: "Signature of Young Officer, J.J. Crittenden, Killed with Custer at the Little Bighorn" presented by the Shapell Manuscript Foundation • http://www.shapell.org/manuscript/custers-last-stand-battle-little-bighorn-officer-jj-crittenden • Undated.