Bachman–Turner Overdrive
Aerosmith
Premiata Forneria Marconi
Peter Sinfield
Blue Öyster Cult
Eagles
America
Marshall Tucker Band
The Nitty Gritty Dirt Band
Boz Scaggs
Ted Nugent
David Bromberg
Leo Kottke
Cactus
Lynyrd Skynyrd
The Electric Flag
Bruce Springsteen (did not perform)
Bob Seger & the Silver Bullet Band
The Earl Scruggs Revue
Charlie Daniels Band
Joe Walsh and Barnstorm
The Souther-Hillman-Furay Band
The Ozark Mountain Daredevils
Jimmie Spheeris
Triphammer
Bill Quateman
Jefferson Starship
Fresh Start
Babe Ruth
Locomotiv GT
The Sweet
Shawn Phillips
REO Speedwagon
Spirit
Banco
Elvin Bishop
The Eagles weren’t a band in ‘69. Neither was REO.
That’s a BS list.
Aerosmith was not yet a band in 1969. I wonder if your list is from the 1994 “Woodstock”.