There are at least 6 bands:
These are photos from concerts where Kindred played, so they may be of other bands that played the concert as well.
Badfinger / Kindred / Bloodrock Aug 4, 1972 Macon, Georgia, United States Uploaded by Zimtrim
Badfinger / Bloodrock / Kindred Aug 3, 1972 Atlanta, Georgia, United States Uploaded by Zimtrim
Badfinger / Cactus / Kindred Jul 21, 1972 Sioux Falls, South Dakota, United States Uploaded by Zimtrim
Badfinger / Cactus / Kindred Jul 15, 1972 Kansas City, Kansas, United States Uploaded by Zimtrim
Badfinger / Cactus / Kindred Jul 14, 1972 San Antonio, Texas, United States Uploaded by Zimtrim
My ticket stub
Badfinger / Cactus / Kindred Jul 14, 1972 San Antonio, Texas, United States Uploaded by Geegee1103
Badfinger / mckendree spring / Kindred Jun 24, 1972 New York, New York, United States Uploaded by Zimtrim
Three Dog Night / Kindred Jun 18, 1972 Philadelphia, Pennsylvania, United States Uploaded by Zimtrim
Three Dog Night / Kindred Apr 28, 1972 Buffalo, New York, United States Uploaded by Suraci
Three Dog Night / Kindred Mar 10, 1972 Baton Rouge, Louisiana, United States Uploaded by Zimtrim
Frank Zappa / The Mothers Of Invention / tim buckley / Kindred / brotherhood of light Sep 26, 1970 San Rafael, California, United States Uploaded by Zimtrim
Frank Zappa / The Mothers Of Invention / tim buckley / Kindred / brotherhood of light Sep 25, 1970 San Rafael, California, United States Uploaded by Zimtrim