Williams was at the helm of the A's from 1971-73, during which his teams posted records of 101-60, 93-62 and 94-68. His 1972 team won a seven-game World Series from the Boston Red Sox, spurred by Gene Tenace's four home runs. His 1973 team won the World Series from the New York Mets, again in seven games, highlighted by the relief pitching of Rollie Fingers, who allowed 1 run in 20 innings.
Williams, who also managed the Boston Red Sox, California Angels, Montreal Expos, San Diego Padres and Seattle Mariners in a 21-year managerial career, finished with a career record of 1,571-1,451 (.520).
Joining him among the Hall of Fame nominees elected by the Veterans Committee are former baseball commissioner Bowie Kuhn, former Dodgers owner Walter O'Malley, former Pittsburgh Pirates owner Barney Dreyfuss and former St. Louis Cardinals and Boston Braves manager Billy Southworth.
Williams, the only member of the class who is alive, said he and his wife, Norma, broke down and cried when they got the call on Monday morning.
"It just blew our mind," he said.
A's president Michael Crowley extended the club's well wishes.
"We congratulate Dick on his well-deserved honor," he said. "Our franchises has a proud history and a championship culture due in large part to Dick's work in Oakland."
Williams will be inducted July 27 as part of the annual Hall of Fame weekend in Cooperstown, N.Y.