Tucson Old Pueblo Credit Union was established in 1935 when Fire Captain John “Slatz” Freeman and 19 other men pooled their r ... esources to form Tucson Municipal Employees Federal Credit Union. The first branch was at Fire Station One in downtown Tucson and the hours of operation were whenever there wasn’t a fire. The firefighters invited the police department and all City of Tucson employees to be part of the credit union. Through the years the Credit Union has made changes in both charters and names but throughout it all TOPCU has remained dedicated to our founding members, the City of Tucson employees. read more