I am looking for information on Franz Joseph Merkling, born 21 September 1833 in Alsace. He married Margarethia Moellendorf about 1852. In August 1872 the family arrived in New York City and migrated to Minnesota by 1875. Their children included; Jacob, George, Magdaline, Marie (or Mary), Anna, Gertrude and Kate.
Any information on the descendants of Franz Joseph and Margarethis Merkling is very appreciated.