| Friday, October 19th , 1888 | | Activated SP Bancroft King from the injured list. | | Thursday, September 13th , 1888 | | Placed SP Bancroft King on the 15-day injured list, retroactive to 09/10/1888. | | Wednesday, April 11th , 1888 | | Signed free agent RP Emmanuel Snipe to a minor league contract with a major league option. | | Monday, April 9th , 1888 | | Signed free agent SS Dave Thompson to a minor league contract with a major league option. | | Sunday, March 25th , 1888 | | Signed free agent RP Jim Cooke to a minor league contract with a major league option. | | Sunday, March 18th , 1888 | | Signed free agent 2B Willis Gaylord to a 1-year contract worth a total of $650. | | Saturday, March 10th , 1888 | | Signed free agent RP Wendell Blanchard to a minor league contract with a major league option. | | Thursday, March 8th , 1888 | | Signed Scouting Director Edmund Madison to a 3-year, $78 per year contract. | |
