Hannibal, Missouri, meet your mortgage guide. John Zimmer, Loan Officer at HNB National Bank, simplifies the home buying process. Specializing in mortgages, John provides expert guidance and personalized service to Hannibal residents. From application to closing, he ensures a seamless and efficient experience. Contact John during business hours, 9 AM to 5 PM, for dedicated support and exceptional mortgage solutions. Let John Zimmer help you achieve your homeownership dreams in Hannibal.