Personnel and recording dates for all tracks are unknown. The following details come from the 2001 CD re-release liner notes:
"Love You Like a Woman" (recorded October 1968)
"I Love a Lover Like You" (recorded April 23, 1969)
- Koko Taylor – vocals
- Willie Dixon – bass guitar
- Buddy Guy – guitar
- Walter "Shakey" Horton – harmonica
- Clifton James – drums
- Albert "Sunnyland Slim" Luandrew – piano
- Matt Murphy – guitar (possibly)
- Johnny Shines – guitar (possibly)
"Don’t Mess with the Messer" (recorded on January 20, 1965)
- Koko Taylor – vocals
- Willie Dixon – double bass
- Buddy Guy – guitar
- Clifton James – drums
- Lafayette Leake – piano
- Matt Murphy – guitar
- unknown saxophone players and background vocalists
"I Don’t Care Who Knows" (recorded October 1968)
"Wang Dang Doodle" (recorded on December 7, 1965)
- Koko Taylor – vocals
- Gene Barge – saxophone
- Fred Below – drums
- Willie Dixon – backing vocals
- Buddy Guy – guitar
- Donald Hankins – saxophone
- Lafayette Leake – piano
- Jack Meyers – bass guitar
- Johnny "Twist" Williams – guitar
"I’m a Little Mixed Up" (recorded in 1965)
- Koko Taylor – vocals
- Gene Barge – tenor saxophone
- Willie Dixon – double bass
- Buddy Guy – guitar
- Clifton James – drums
- Lafayette Leake – piano
- unknown background vocalists
"Nitty Gritty"
- Koko Taylor – vocals
- Buddy Guy – guitar
- Walter "Shakey" Horton – harmonic
- Clifton James – drums
- Lafayette Leake – piano (possibly)
- Albert "Sunnyland Slim" Luandrew – piano (possibly)
- Jack Meyers – bass guitar
- Matt Murphy – guitar (possibly)
- Johnny Shines – guitar (possibly)
"Fire" (recorded August 1967)
- Koko Taylor – vocals
- Gene Barge – tenor saxophone
- Willie Dixon – vocals
- Buddy Guy – guitar
- Lafayette Leake – piano, organ
- Johnny "Twist" Williams – guitar
- unknown bass guitarist and drummer
"Whatever I Am, You Made Me" (recorded January 20, 1965)
- Koko Taylor – vocals
- Willie Dixon – double bass
- Buddy Guy – guitar
- Clifton James – drums
- Lafayette Leake – piano
- Matt Murphy – guitar
- unknown saxophonist and background vocalist
"Twenty-Nine Ways"
- Koko Taylor – vocals
- Willie Dixon – double bass
- Buddy Guy – guitar
- Walter "Shakey" Horton – harmonica
- Clifton James – drums
- Lafayette Leake – piano (possibly)
- Albert "Sunnyland Slim" Luandrew – piano (possibly)
- Matt Murphy – guitar (possibly)
- Johnny Shines – guitar (possibly)
"Insane Asylum" (recorded August 1967)
- Koko Taylor – vocals
- Gene Barge – tenor saxophone
- Willie Dixon – vocals
- Buddy Guy – guitar
- Lafayette Leake – piano, organ
- Johnny "Twist" Williams – guitar
- unknown bass guitarist and drummer
"Yes, It’s Good for You" (recorded October 1968)
"Love Sick Tears" (recorded 20 January 1965)
- Koko Taylor – vocals
- Willie Dixon – double bass
- Clifton James – drums
- Buddy Guy – guitar
- Matt Murphy – guitar
- Lafayette Leake – piano
"He Always Knocks Me Out"
- Koko Taylor – vocals
- Willie Dixon – double bass
- Buddy Guy – guitar
- Walter "Shakey" Horton – harmonica
- Clifton James – drums
- Lafayette Leake – piano (possibly)
- Matt Murphy – guitar (possibly)
- Albert "Sunnyland Slim" Luandrew – piano (possibly)
- Johnny Shines – guitar (possibly)
Technical personnel
Reissue personnel
- Geary Chansley – photography
- Bill Dahl – liner notes
- Daily Planet – cover design
- Mike Diehl – design
- Doug Fulton – photography
- Erick Labson – remastering at Universal Mastering Studios
- Andy McKaie – reissue production
- Bob Schnieders – research
- Leni Sinclair – inlay photography
- Vartan – art direction
