 In 1882, Cuthbert became the player/manager for the St. Louis team of the newly formed American Association.The following year, Cuthbert relinquished the managerial duties but continued with the Brown Stockings as a player before jumping to the Baltimore Monumentals of the ill-fated Union Association in 1884, his final season.Reportedly, Cuthbert stole the first base in organized baseball in 1865 while playing for the Philadelphia Keystones, simply by waiting for the pitcher to be distracted and running from first to second base.