The Chicago Pirates were a baseball team in the Players' League for a single season in 1890. The team played their home games at South Side Park (II). Their powerful National League rivals were the Chicago White Stockings which later became the Cubs.
The Pirates recruited most of the White Stocking's players, and for this reason the Pirate's attendance was nearly fifty percent higher than the White Stockings. The Pirate's owner, John Addison, was a wealthy contractor. Although Addison and his partner White Stocking second baseman Fred Pfeffer had signed mostly White Stocking players, they also signed four players from the St. Louis Browns of the American Association as well as a pitcher from the Columbus Solons of the American Association.  The team was managed by Charles Comiskey.
Comiskey and Duffy are members of the Baseball Hall of Fame. On June 21, 1890, Silver King pitched the only ever Player's League no-hitter. The team had two nicknames: 1) White Stockings - player wore white hose - which was appropriate because this PL franchise signed away many NL Chicago White Stocking players, 2) Pirates - name applied not for "pirating" away NL players but rather because the team "pirated" many victories with late inning comebacks in games in which they trailed early. Source: BASEBALL TEAM NAMES 1869-2012, Rick Worth.