- 1876 - The National League was formed in New York City, replacing the old National Association. The Pirates were not among the original group and the franchise didn’t join the NL until 1886 when the Alleghenys bolted from the American Association.
- 1951 - Eight Pirates rejected contracts offered by Bucco GM Branch Rickey - pitchers Cliff Chambers, Murry Dickson and Vic Lombardi; catchers Clyde McCullough and Ed FitzGerald, 1B Jack Phillips, IF Pete Castiglione and OF Wally Westbook. They all settled before the season except for Lombardi, who had his salary offer cut by the 25% maximum allowed by the league, and instead signed with Hollywood of Pacific Coast League. He never earned another MLB job.
|Vic rolled the dice and crapped out (1951 Bowman)|
- 1964 - P Burleigh Grimes was selected for the Baseball Hall of Fame by the Special Veterans Committee and was inducted on July 27th. The 270 game winner began, ended, and played some during the middle of his career with the Pirates. Also chosen was OF Heinie Manush, who spent his last two seasons (1938-39) in Pittsburgh, getting 25 at-bats.
- 1969 - RHP Waite "Schoolboy" Hoyt was voted into the Hall of Fame by the Special Veteran's Committee. He spent 4-1/2 of his pro seasons in Pittsburgh between 1933-37, going 35-31, topped by a 15-5 record in 1934. He was inducted on July 28th.
- 1976 - The Special Veterans Committee selected OF Freddie Lindstrom to the Hall of Fame. He played two of his 13 big league campaigns for Pittsburgh, hitting .302 and driving in 147 runs. He was inducted on August 9th.
|Freddie Lindstrom 1933 DeLong|