Bernice Shiner Gera (June 15, 1931 – September 23, 1992) was an American baseball umpire. She became the first woman to umpire a professional baseball game in 1972, retiring after one game citing the resentment of other umpires.

Jan. 13
Bernice Gera prevails in a lawsuit against organized baseball and will be allowed to umpire in the New York-Pennsylvania League during the upcoming season. She had signed with the circuit after completing umpire training school, but days later her contract was voided without explanation. Soon after, she filed suit. 
— Read on www.cbssports.com/mlb/news/how-baseball-changed-forever-in-1972-a-timeline-of-mlbs-most-memorable-events-50-years-later/