One previous interracial kiss occurred not in a color comic book but in Warren Publishing's black-and-white comics magazine Creepy #43 (Jan. 1972), in "The Men Who Called Him Monster", by the same writer, Don McGregor, and artist Luis Garcia. The earliest known humorous interracial kiss was in the story "Home Cooking" in Premier Magazine's satirical comic book Nuts #1 (March 1954), per its listing at the Grand Comics Database.
enjolrasworld.com
"A 2005/2006 Interview with Don McGregor!" Arndt, Richard J. (February 3, 2010). "The Warren Magazines: Interviews". Archived from the original on 11 September 2009. Retrieved 22 September 2010. Additional .
feoamante.com
In addition to contemporaneous reviews in the 1970s, latter-day reviews include:
"Don McGregor took over the 'Killraven' writing chores, and was joined soon after by P. Craig Russell. With their combined talents, and the freedom that comes with working on a low-selling book that could be canceled at any moment, the two of them produced a groundbreaking series that explored philosophy, madness, love, violence, and the nature of freedom". — Gage, Chris. "Killraven 1 (of 6)". (Review) FeoAmante.com. Archived from the original on February 6, 2010.
"A 2005/2006 Interview with Don McGregor!" Arndt, Richard J. (February 3, 2010). "The Warren Magazines: Interviews". Archived from the original on 11 September 2009. Retrieved 22 September 2010. Additional .
"Kirkman on 'Killraven'" (archive), WizardUniverse.com (Aug. 10, 2007), by Jim Gibbons and Sean T. Collins. Per Kirkman, "[T]his is really just another Killraven from another universe. The original Killraven is still out there".
In addition to contemporaneous reviews in the 1970s, latter-day reviews include:
"Don McGregor took over the 'Killraven' writing chores, and was joined soon after by P. Craig Russell. With their combined talents, and the freedom that comes with working on a low-selling book that could be canceled at any moment, the two of them produced a groundbreaking series that explored philosophy, madness, love, violence, and the nature of freedom". — Gage, Chris. "Killraven 1 (of 6)". (Review) FeoAmante.com. Archived from the original on February 6, 2010.