Timothy Isaiah Courtright (1848 – February 8, 1887), also known as "Longhair Jim" or "Big Jim" Courtright, was a Tarrant County Deputy Sheriff in Ft. Worth, Texas from 1876-1879. In 1887, he was killed in a shootout with gambler and gunfighter Luke Short. Before his death, people feared Courtright's reputation as a gunman, and he successfully reduced Ft. Worth's murder rate by more than half, while reportedly extracting protection money from town business owners.