In 1857, The First National Bank of St. Peter was first known as the Bank of Edgerton, Smith, and Donahower. When Smith sold his interest to Mr. Martin, the firm changed its name to Bank of Edgerton, Donahower, and Company. From the spring of 1860 until the time the national charter was awarded in 1871, the firm was known as Bank of Edgerton and Donahower. The bank has done business under its present name of The First National Bank of St. Peter since May 1, 1871. From 1887 to 1965, the bank was located at the corner of Minnesota Avenue and Nassau Street in a distinguished building with Federal style architecture.