ALEXANDRIA, Va. -- Kenneth Moffett, the federal mediator during the 1981 baseball strike who briefly succeeded Marvin Miller as the second head of the players' association, has died. He was 90.

Moffett died Nov. 19 at his home in Alexandria, Virginia, said his wife, the former Mary Taddeo. He had been ill with dementia for about six months and the death certificate cited natural causes, she said Monday.

His death was first reported by The New York Times.

Moffett was part of the Federal Mediation and Conciliation Service in 1980, when baseball players and owners reached an agreement that put off a work stoppage until the following year. As deputy director of the FMCS during the 50-day strike that interrupted the 1981 season, he shuttled between the parties, set up bargaining sessions and suggested frameworks for settlement.

He also worked at the FMCS during the August 1981 strike by the Professional Air Traffic Controllers Organization against the Federal Aviation Administration. President Ronald Reagan ordered the firing of workers who did not return to their jobs.

Moffett said in 1994 that baseball negotiations were different from all other types of collective bargaining.

"It is done in a fishbowl," Moffett told The Associated Press. "Every statement, every press release -- anything -- is for public consumption. In most negotiations, you don't hear a peep until there's a settlement."

As the union's 1994 strike deadline approached, Moffett said: "My gut reaction is it seems like nothing's changed. ... The issues are still the same."

Moffett was hired in December 1982 as the second executive director of the Major League Baseball Players Association and took over on Jan. 1, 1983, when Miller retired ahead of his 66th birthday. Moffett was given a three-year contract but lasted just 10 1/2 months and was fired that Nov. 22 by the union's executive board.

Donald Fehr, then the union's general counsel, took over as acting executive director on Dec. 8, became executive director on a full-time basis in January 1986 and held the top spot until retiring in December 2009.

Moffett became assistant to the president of the National Association of Broadcast Employees and Technicians in 1985. That union merged with the Communications Workers of America in 1994. He retired in 2003 as the CWA's human resources director.

Moffett is survived by his fourth wife, whom he married in 1999; and three children from his first wife, Barbara: son Kenneth Jr., director of negotiations at the National Treasury Employees Union; son John; and daughter Laura Tornell. Moffett's three previous marriages ended in divorce.