Montgomery Bank Address: 140 S Walnut St, Dexter, MO 63841 Phone: (573) 624-4343 Banks, Mortgages Other Businesses: First Midwest Bank at 20 W Stoddard St, Dexter, MO 63841 First Commercial Bank-Dexter at 303 W Market St, Dexter, MO 63841 Southern Missouri Bank & Trust at 713 W Business US Highway 60, Dexter, MO 63841 Southern Bank at 713 W Business US Highway 60, Dexter, MO 63841