The Grass Roots members - a line-up

1965–1967

Steve Barri (b. Steven Barry Lipkin, February 23, 1942, Brooklyn) — Various Instruments, Producer, Songwriter
Denny Ellis — Rhythm Guitar
Willie Fulton — Lead Vocals, Lead Guitar
Joel Larson — (b. April 29, 1947, San Francisco) - drums
P.F. Sloan (b. Philip Gary Schlein, September 18, 1945, New York) — Lead Vocals, Various Instruments, Producer, Songwriter
David Stensen — (b. February 25, 1947, San Bruno) - Bass Guitar

Classic Lineup 1967–1971

Creed Bratton (b. William Charles Schneider, February 8, 1943, Los Angeles) — Lead Guitar, Lead Vocals, Songwriter (to 1969)
Rick Coonce (b. Erik Michael Coonce, August 1, 1946, Los Angeles) — Drums, Songwriter
Warren Entner (b. July 7, 1944, Boston) — Lead Vocals, Rhythm Guitar, Songwriter
Terry Furlong (b. December 31, 1942, London) — Lead Guitar (1969-71)
Rob Grill (b. Robert Frank Grill, November 30, 1943, Los Angeles) — Lead Vocals, Bass Guitar, Songwriter
Brian Naughton — Lead Guitar (1969-71)
Dennis Provisor (b. November 9, 1950, Los Angeles) — Lead Vocals, keyboards, Songwriter (1969-71)

1972–1975

Warren Entner — Lead Vocals, Rhythm Guitar, Songwriter, Producer
Rob Grill — Lead Vocals, Bass Guitar, Songwriter, Producer
Reed Kailing — Lead Guitar, Songwriter (1972-74)
Reggie Knighton (b. November 3, 1953, Biloxi) — Lead Guitar (1974-75)
Joel Larson — Drums
Terry Dailey — Drums
Dennis Provisor — Lead Vocals, Keyboards, Songwriter
Virgil Weber — Keyboards (1972-74)
Gene Barkin — Guitar, Vocals
Terry Furlong — Lead Guitar

Post–1975

Rick Alexander — Lead Guitar
Steve Berndt — Bass Guitar
Brian Carlyss — Bass Guitar
Terry Danauer — Bass Guitar
Alan Deane — Lead Guitar, lead/background vocals
Coy Fuller — Drums
Ralph Gilmore — Drums
Rob Grill — Lead Vocals, Bass Guitar, Songwriter
Scott Hoyt — Lead Vocals, Lead Guitar
Joel Larson — Drums
Charles Judge — Keyboards
Reagan McKinley — Drums
Luke Mearett — Drums
Chris Merrell — Lead Guitar
David Nagy — Lead Vocals, Bass Guitar
Terry Oubre — Lead Guitar
David Page — Drums
Dennis Provisor — Lead Vocals, Keyboards, Songwriter
Hal Ratliff — Keyboards
Dave Rodgers — Keyboards
Scott Sechman - Lead Guitar, Vocals
Glen Shulfer — Lead Guitar
Mike Steck — Bass Guitar
Gene Wall — Keyboards, Vocals

Current

Mark Dawson — Bass Guitar and Vocals
Joe Dougherty — Drums
Rob Grill — Lead Vocals, Bass Guitar, Songwriter
Dusty Hanvey — Lead Guitar
Larry Nelson — Keyboards