John C. Callaghan (July 9, 1869 – January 27, 1929) was the fourth Arizona Secretary of State.
Prior to that he had been elected to be Arizona's first state auditor, taking office on the day Arizona officially became a state on February 14, 1912.
In 1926, he ran for and won the position of Arizona State Treasurer.
[3] He won a close race in November against Republican Isaac "Ike" Peter Frazier.
[2] This article about an Arizona politician is a stub.