Miller served in the United States Marine Corps during World War II.
[2] Miller served on the Tucson city council for fourteen years prior to becoming mayor in 1991.
[1] After serving as mayor for two terms, Miller declined to run again, and was succeeded by Bob Walkup on December 6, 1999.
[1] At the time of his retirement Miller was Tucson's longest serving public official, having spent twenty-two consecutive years in office: fourteen years as a city councilman and eight as mayor.
He contributed opinion pieces to the Arizona Daily Star on various topics including his support for the annexation of unincorporated areas north of Tucson.