Conversation so far:
When did Arthur Irwin's career end?
Arthur Irwin's regular playing career ended after the 1890 season.
What team was Arthur Irwin on when he was a player-manager?
During the 1889 season, Arthur Irwin went to the Washington Nationals for his first opportunity as player-manager.

Question: What team did he play for in 1886?
Self-contained rewrite: What team did Arthur Irwin play for in 1886?