April 3 – Jack Clements, now with St. Louis, is the first southpaw to catch in 1,000 MLB games.
April 21 – Philadelphia Phillies pitcher Bill Duggleby hits a grand slam in his first major league at-bat. No one else will accomplish that feat until Jeremy Hermida in 2005.
April 22 – This day in baseball would see two no-hitters. First, Ted Breitenstein would throw the second no-hitter of his career, as the Cincinnati Reds would defeat the Pittsburgh Pirates, 11–0. Meanwhile, Jay Hughes would toss a no-hitter for the Baltimore Orioles in a 5–0 win over the Boston Beaneaters. This is the first time in Major League history that two no-hitters would be thrown on the same day. It would not happen again until Dave Stewart and Fernando Valenzuela turned the trick on June 29, 1990.
July 5 – Lizzie Arlington becomes the first woman to play in organized baseball as she pitches for the Reading Coal Heavers of the Atlantic League. She hurled the final inning of that game and gave up two hits and a walk but did not allow a run. Some claim she also pitched in exhibition games after being hired by Ed Barrow, the league's president.
April 17 – Bobby Mathews, 46, pitcher who won 297 games, 131 of them in the National Association, in a career that ran from 1871 to 1887, including the first professional league game victory in 1871, and consecutive 30-win seasons for the Philadelphia Athletics from 1883 to 1885.
September 21 – Bill Tierney, 40, first baseman and outfielder.
October 5 – John Richmond, 43, shortstop and center fielder for seven teams during his eight seasons from 1875 to 1885.
October 20 – Curry Foley, 42, Irish outfielder/first baseman/pitcher who played from 1879 through 1883 for the Boston Red Caps and Buffalo Bisons National League teams, and the first major league player ever to hit for the cycle (May 25, 1882).
November 21 – Bill Hague, 46, third baseman from 1875 to 1879.