William Leonard was a Medal of Honor recipient in the United States Army during the Plains Indian Wars.

While serving as a private in Company L, 2nd U.S. Cavalry, he fought in an action against Indians at the Battle of Little Muddy Creek in Montana Territory on May 7, 1877.

[1][2] Rank and organization: Private, Company L, 2nd United States Cavalry.

Place and date: At Muddy Creek, Montana, May 7, 1877.

Birth: Ypsilanti, Michigan, United States.