Roy Francis McGillicuddy (August 27, 1888 – February 11, 1960), known as Roy Mack, was an American baseball team executive owner who co-owned the

Philadelphia Athletics The Philadelphia Athletics were a Major League Baseball team that played in Philadelphia from 1901 to 1954, when they moved to Kansas City, Missouri, and became the Kansas City Athletics. Following another move in 1967, the team became the Oaklan ...

of the American League with his brother Earle Mack from through . Mack was born in Washington, D.C. in 1888, the son of

Hall of Fame A hall, wall, or walk of fame is a list of individuals, achievements, or other entities, usually chosen by a group of electors, to mark their excellence or Wiktionary:fame, fame in their field. In some cases, these halls of fame consist of actu ...

manager and former Athletics owner Connie Mack and Gertrude Browning Chaffee. His paternal grandparents, Michael McGillicuddy and Mary McKillop, were born in Ireland. He grew up in Worcester, Massachusetts, where he attended Worcester Academy. Roy Mack's baseball career was focused on front office administration and management. After serving as business manager of the Portland Beavers of the

Pacific Coast League The Pacific Coast League (PCL) is a Minor League Baseball league that operates in the Western United States. Along with the International League, it is one of two leagues playing at the Triple-A (baseball), Triple-A level, which is one grade bel ...

, which had a working agreement with the Athletics, he joined the Philadelphia front office in 1936 as a vice president. In August 1950, he and Earle Mack became majority owners of the club during a reorganization. But they could not arrest the club's declining performance on the field and deteriorating financial picture. In November 1954, the brothers sold the Athletics to Chicago industrialist Arnold Johnson, who immediately transferred the team to

Kansas City, Missouri Kansas City (abbreviated KC or KCMO) is the largest city in Missouri by population and area. As of the 2020 census, the city had a population of 508,090 in 2020, making it the 36th most-populous city in the United States. It is the central ...

. Roy then spent one season, 1955, as a vice president of the Kansas City club before retiring. He died in Lower Merion Township, Pennsylvania, aged 71.''Pennsylvania, Death Certificates, 1906-1966''

References

Oakland Athletics owners
1888 births 1960 deaths Businesspeople from Worcester, Massachusetts Kansas City Athletics executives Mack family Major League Baseball owners Philadelphia Athletics executives Philadelphia Athletics owners {{baseball-business-bio-stub