The American Breed The American Breed (Atca, 1967) B+ (June 2013)
The Astronauts Competition Coupe (RCA Victor, 1963) A (December 2013)
Blues Magoos Electric Comic Book (Mercury, 1967) B+ (December 2012)
The Blues Project Projections (Verve, 1966) A (December 2012)
The Box Tops Dimensions (Bell, 1969) A- (February 2013)
The Cowsills The Cowsills in Concert (MGM, 1969) D+ (March 2014)
The Critters Younger Girl (Kapp, 1966) B (December 2013)
The Cryan’ Shames Sugar & Spice (Columbia, 1966) B- (April 2013)
The Cyrkle Red Rubber Ball (Columbia, 1966) D+ (July 2013)
The Electric Flag A Long Time Comin’ (Columbia, 1968) B+ (July 2013)
The Electric Prunes Underground (Reprise, 1967) A (February 2014)
The Fabulous Knickerbockers Lies (Challenge, 1966) C (February 2013)
Federal Duck Federal Duck (Musicor, 1968) C+ (September 2013)
Fever Tree Fever Tree (Uni, 1968) B+ (November 2014)
The Fugs The Fugs First Album (ESP-Disk, 1965) A (March 2014)
The Gentrys Gentry Time (MGM, 1966) B (November 2013)
The Hassles Hour of the Wolf (United Artists, 1969) C+ (August 2013)
Jan and Dean Command Performance (Liberty, 1965) B (February 2014)
The Kingsmen The Kingsmen in Person (Wand, 1963) A (January 2013) The Kingsmen Volume II (Wand, 1964) A- (May 2013) The Kingsmen on Campus (Wand, 1965) B- (April 2014) Up and Away (Wand, 1966) B- (August 2014)
Terry Knight and the Pack Reflections (Cameo, 1967) B+ (January 2013)
The Lemon Pipers Green Tambourine (Buddah, 1968) A (June 2014)
The Lettermen Spring! (Capitol, 1967) D (May 2014)
The Mugwumps The Mugwumps (Warner Bros., 1967) B- (April 2013)
Michael Rabon & the Five Americans Now and Then (Abnak, 1968) B+ (December 2012)
The Outsiders Happening “Live!” (Capitol, 1967) B (June 2013)
Paul Revere & the Raiders A Christmas Present… and Past (Columbia, 1967) C+ (December 2012) Just Like Us! (Columbia, 1966) A+ (December 2014) Midnight Ride (Columbia, 1966) A+ (May 2014)
The Paupers Magic People (Verve Forecast, 1967) B- (June 2014)
The Peanut Butter Conspiracy Barbara (self-released, 2014) A- (October 2014) The Great Conspiracy (Columbia, 1968) A (July 2014)
The Peppermint Rainbow Will You Be Staying After Sunday (Decca, 1969) B- (October 2013)
The Shadows of Knight Back Door Men (Dunwich, 1966) A+ (March 2013)
The Standells The Standells in Person at P.J.’s (Liberty, 1964) B+ (March 2013)
The Strawberry Alarm Clock Incense and Peppermints (Uni, 1967) A+ (January 2014)
Syndicate of Sound Little Girl (Bell, 1966) A- (December 2013)
The Turtles It Ain’t Me Babe (White Whale, 1965) A (September 2013)
Vanilla Fudge Vanilla Fudge (Atco, 1967) B (February 2014)
Various Artists The Best of Louie, Louie (Rhino, 1983) B (May 2013)
The West Coast Pop Art Experimental Band Vol. III: A Child’s Guide to Good and Evil (Reprise, 1968) B+ (September 2013)
The Youngbloods Elephant Mountain (RCA, 1969) B+ (November 2014)
Underground Music of the 1960s 
What about Orpheus – featuring Bruce Arnold? Great group, underrated
Thanks for the suggestion. I’m honestly not all that familiar with Orpheus, but I’ll keep an eye out for an album. I appreciate the tip. Thanks for reading.
Charlie