SM Federal Credit Union was founded on September 15, 1960, under the name of SM Postal Federal Credit Union. We started in the basement of the Main Shawnee Mission Post Office, where we still reside today. On January 31, 1974 our charter was amended to include Federal Aviation Administration employees in Olathe. Later, we expanded to add a branch more accessible for FAA members. It is located in the secured offices of the Air Traffic Control office in Olathe. On June 12, 1998 we changed our name to SM Federal Credit Union.