Oscar Buckalew was a pioneer of Tucson, AZ. He served as Clerk of the Pima County Board of Supervisors, as well as Clerk of the District Court of Arizona's First Judicial District. The collection contains a holograph account book of financial transactions for monies collected for recording deeds and mortgages and writing bonds dating from Jan. 15, 1866 to Jan. 5, 1873. It also includes transaction records with many prominent Arizonans.