John Francis O'Sullivan

John Francis O'Sullivan (c. 1850 – May 19, 1907) was an Irish-born soldier who emigrated to New York City, where he joined the United States Army who served with the 4th U.S. Cavalry during the Texas–Indian Wars.

He received the Medal of Honor for gallantry against a hostile band of Indians at the Staked Plains in Texas on December 8, 1874.

John Francis O'Sullivan was born in County Kerry, southern Ireland in about 1850.

He and fellow Private Frederick Bergendahl distinguished themselves in this battle, and after nearly all the renegades had been killed, O'Sullivan pursued the last surviving Indian but was unable to catch him.

Both Bergendahl and O'Sullivan were received the Medal of Honor, as well as Lieutenant Lewis Warrington, for gallantry at the Staked Plains on October 13, 1875.