FSNB, formerly known as Fort Sill National Bank, has a tradition of distinguished banking service to both the military and civilian communities. In 1942, the Fort Sill command asked City National Bank of Lawton to establish a check cashing facility on the Army post of Fort Sill, home of the U.S. Field Artillery School. The bank now has an estimated 800 employees, each dedicated to ensuring every customer, regardless of position or rank, receives immediate and outstanding service.