Historical Research Associates, Incorporated

year of pub­li­ca­ti­onISBNauthor(s)title
1997978-1-890670-06-1Glenn G. BoyerWho Was Big Nose Kate? (Wyatt Earp: Family, Friends & Foes, Vol. 1)
  ''978-1-890670-07-8Glenn G. BoyerSuppressed Murder of Wyatt Earp
  ''978-1-890670-08-5   ''Wyatt Earp, Family, Friends & Foes, Vol.II. Who Was Sheriff Johnny Behan?
978-1-890670-10-8Curly Bill Has Been Killed at Last (Wyatt Earp: Family, Friends and Foes, Vol. 4)
1997978-1-890670-11-5Who Killed John Ringo? (Wyatt Earp: Family, Friends & Foes, Vol. 5)