The only Melvin to serve in a cabinet post in the 20th century was this man as Nixon's Secretary of Defense
... As the Washington Post reported after his selection as secretary of 
defense,... [DOC] [TLE] John N. Mitchell - Wikipedia [PAR] John Newton Mitchell (September 15, 1913  November 9, 1988) was the 
Attorney General of the United States (196972) under President Richard Nixon.