Lee Roy Pettit (October 29, 1916 – July 31, 1994), known professionally as Ramblin' Jimmie Dolan, was a Western swing musician born in Gardena, California. He is best remembered for his hit single, "Hot Rod Race" on Capitol Records, which reached No. 7 on the Billboard country chart in February 1951.

He later worked at radio station KWK in St. Louis, MO, until he enlisted with the US Navy. Dolan prefers to be remembered for his contributions in entertaining troops in the Pacific Theatre, especially the Philippines during World War II. He reached the rank of Chief Petty Officer filling the function of a radioman. He returned from the war with a ready built fan base and his charisma soon had him in demand at dance halls throughout the west.
By 1946 he was singing on KXLA in Los Angeles and was billing himself as "America's Cowboy Troubador". He had his first recording contract soon after, for Four Star Records, which, thanks to a delay, didn't start seeing the light of day until 1948 -- the latter included a cover of Ernest Tubb's then recent hit "I'm Walkin' the Floor Over You." Meanwhile, Dolan was building up a loyal following on the air with his warm, easygoing persona and voice, and his self-effacing manner. He was signed at various moments in the late '40s to the Bihari Brothers' Modern Records and also to Crystal Records for one single, before joining Capitol Records' roster in 1949.

Dolan's Capitol sides featured such top session players as Merle Travis and Charlie Aldridge on guitar, and were beautifully spare productions, with no pop music pretensions or other embellishments. What's more, the Capitol sessions showcased the singer/guitarist's limited but occasionally significant talent as a songwriter. He had to wait until 1950 for his first hit, a version of the Moon Mullican song "I'll Sail My Ship Alone," which featured lead guitarist Porky Freeman along with his usual sidemen Wade Ray on fiddle and Freddie Tavares playing steel guitar. He also had hits with tunes such as "It Had To Come Someday", "I'll Sail My Ship Alone", "Who's Kiddin' Who", "Hot Rod Race", and "I'll Make Believe".
He then had a long running radio show in San Francisco. On an airline flight he met United Airlines Stewardess Charline Bales, a graduate of the University of Idaho. They were married for 13 years. He is survived by a daughter, Patricia and a granddaughter Aria.
Not much is known about Dolan's life during the 39 years that he lived after walking away from Capitol and the music business. Last time he was heard of was that he was employed as a second hand auto sales man in Los Angeles. During the late 1980s he was contacted by the former president of his fan club, recently widowed. They met again, both being free and lived happily together until his death in Riverside Co., California on July 31, 1994
(Compiled & edited from Wikipedia, hillbilly music.com & AllMusic)