I am looking for information on Margaret Freis/Freeze/Freese born c. 1798, her son John born c. 1831 and her daughter Johanna Freis Nienaber born 1829. This family may have lived in St Louis MO in 1851. They were in the Federal census of Jackson Co. IA in 1860 and John Freis was in the 1880 census in Eldorado Twp. Benton Co. IA. Who was Margaret's husband? Who did John Freis marry? Where are they all buried? Thank you in advance for any help you might offer. Charlotte