Todd, I tried to post a rather lengthy reply to your inquiriy and my computer "bailed on me just as I was submitting the reply".I will have to make it a little shorter this time, but if you want more information on the military history of the Garlingtons just drop me an email.
E. A. Garlington was in the 7th Cavalry but not at the "Battle of Little big Horn".Rather it was at the (now politically incorrect) "Battle of Wounded Knee" that he won his Medal of Honor.See the Medal of Honor web-site for further details.He led a pretty interesting life and the sone of a Confederate General and father of a General (his grandon was killed in Europe in WWII while serving as a Lieutenant in the Army.
E.A. was also serving as Inspector General of the Army under President Teddy Rooselvelt when he was involved in the "Brownsville Incident" (which resulted in his recommending the dishonorable discharge of all of the black troops).Those discharges were later overturned by President Jimmy Carter.E.A. also led an Arctic expedition to relieve the explorer, Greely. He served in the Spanish American War in the Phillipenes as well.