Tyree was born in Gordonsville, Tennessee, in 1940.[1][2] He received a bachelor's degree from Middle Tennessee State University, where his major was political science. Subsequently he earned a law degree from the University of Tennessee.[3] Tyree, later divorced, was married to the former Mary Pat Dukas. The couple had four children.[3]
For a ten-year period early in his career, he worked in law enforcement, including a four-year stint with the Federal Bureau of Investigation (FBI) as well as a period as a police officer in Knoxville. He also served as a police commissioner in the City of Knoxville.[4][5]
He was elected mayor of Knoxville at age 34 in 1975, the city's youngest candidate ever to hold that office, defeating Republican incumbent Kyle Testerman. He took office the following year.[6] In 1979, he won re-election to a second four-year term, and presided over the city during the 1982 World's Fair.[6]
In 1982, Tyree ran for Governor with support from Jake Butcher. He won the Democratic nomination by defeating Anna Belle Clement O'Brien in the primary election,[7] but lost to Republican incumbent governor Lamar Alexander in the November general election.[6]
Tyree unsuccessfully sought to again become mayor in the 1987 election.
Tyree was a candidate for sheriff of Knox County in 2006 and 2008. In the May 2006 primary, he ran as a write-in candidate, winning over 5% of the vote and thus earning a place in the August general election, which he lost to Republican incumbent Tim Hutchison.[5][8][9] In 2008, he won the Democratic primary held in February, but lost to J.J. Jones in the August general election.[10]
Tyree died on November 24, 2025, at the age of 85.[1][11]