Rockford lasted just the one season in the Association, and Addy did not rejoin the league until when he joined the Philadelphia White Stockings. He played in ten games as player-manager, before moving on and joining the Boston Red Stockings later in the season. He helped the Red Stockings win the league title that year, playing in right field, hitting .355, and finished ninth in the league with a .354 on-base percentage. On January 20, 1874, the National Association's Judiciary Committee met to discuss, among other things, charges that Addy had joined the Boston Red Stockings before 60 days had elapsed since leaving the Philadelphia club. He was acquitted of the charge and was allowed to play.