| | | Wednesday, September 23rd , 1891 | | Signed free agent CF Roy Forsyth to a 1-year contract worth a total of $364. | | Wednesday, April 22nd , 1891 | | Signed free agent 1B Oliver Acker to a minor league contract. | | Signed free agent 3B Al Dawson to a minor league contract. | | Friday, March 20th , 1891 | | Signed free agent RP Ed Antoine to a 1-year contract worth a total of $354. | | Signed free agent RF Frank Busby to a minor league contract. | | |
