Square Roots were together in various forms from 1983 to 1995. Their Myspace page lists the multitude of members who played in the band.
Musicians 1983-88: Billy Pitrone, Chris Sandman, Jim Deleon, Jon Abrams, Jack Hansen, Geordie Holbert, Dan Young, Creek, Adam Beach
1989-92: Billy, Chris, Jon, Geordie, Dan, Adam, Chris Biaggi, Dave McGillicuddy, Neil Bettencourt, Dan Marcus, Dave Gregoric, Mark Cruise, Danielle Biaggi
1993-95: Billy, Chris, Jon, Adam, Jim (sometimes), James Thomason, Smith Dobson Jr., Scott Larson, Jay Sanders, Sam Miller, Rob Pratt