On November 23, 2017, construction began on a 2,500-square-foot (230 m2) expansion to the museum, including a secure archive facility, library, new entrance, and auditorium/exhibition space.

[3][4] In 2021, Helen Callaghan, who had played in the All-American Girls Professional Baseball League (AAGPBL), became the first woman individually inducted to the Canadian Baseball Hall of Fame; the Hall had previously inducted, as a group in 1998, all Canadian women who played in the AAGPBL.

[5] In early 2022, the Hall of Fame was criticized for not inducting the Chatham Coloured All-Stars, the first team of Black Canadians to win an Ontario Baseball Association title.

[9] This includes professional and amateur players, builders, administrators, umpires, broadcasters, writers, and honorary members who have helped popularize the sport in Canada.

[10][11] The 32-acre (13 ha) facility in St. Marys also includes four baseball fields designed by landscape architect Art Lierman of London, Ontario.