ARLINGTON, Texas — Former Seattle Mariners president Dan O’Brien Sr. died Monday in Dallas. He was 87.
The Texas Rangers announced O’Brien’s death. The Rangers were one of four major-league teams with whom O’Brien held front-office jobs during his 45 years in professional baseball. He served as the Rangers’ general manager from 1973-78.
O’Brien began his baseball career in 1955 as a minor-league general manager and spent 10 years in the minors before joining the Rangers. He left Texas to become president and later general manager of the Seattle Mariners. He also worked in the front office with the Cleveland Indians, California Angels, Arizona Fall League and USA Baseball before his retirement in 2000.
“On behalf of the Seattle Mariners organization, I extend our deepest condolences to the family and friends of Dan O’Brien,” Seattle Mariners president and chief operating officer Kevin Mather said in a press release. “He was a true gentleman who loved the game of baseball at all levels and served it well for over 45 years. Dan was the Mariners president in 1979-1980, and added general manager duties in 1981-1983, leading the organization’s efforts in hosting the 1979 All-Star Game and through an ownership transition. He is remembered by many for his dedication to the baseball community and most importantly to his family.
“Our best wishes are with Dan’s wife Mary Ann, his son Dan Jr., who worked for the Mariners in the inaugural season 1977, his daughter Lori, and his many friends in the baseball world.”
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