found: Guitar's practicing musicians [SR] p1990:label (Billy Sheehan)
found: All music guide WWW site, March 18, 2014(Billy Sheehan; born March 19, 1953, Buffalo, NY; electric bassist best known for his work with former Van Halen vocalist David Lee Roth; member of Mr. Big, Niacin, and Talas)
found: Int. ww in pop. mus., 14th ed.(Sheehan, Billy; American musician (bass guitar); founder member of rock group Talas, 1980-1983; bass player for David Lee Roth, 1985-1988; founder member, Mr. Big, 1989- )
found: U.S. copyright file, March 18, 2014(Sheehan, Billy; Sheehan, William, 1953- )