I am searching for information on Anton DEDI (also DIDIER)b.abt. 1790 Prussia. Exact location unknown. His wife Anna, nee RAU, immigrated with her son and daughter-in-law and infant granddaughter to the USA via London and came to New York on the ship Quebec. I don't know what happened to Anton. I can't find him in immigration ship lists. I have no immigration info. about the others who immigrated. I do know the family lived in Milwaukee, WI. (Anna's son, Charles [Carl] and his wife and family; I don't see Anna on the census listings). I am trying to find their place of origin. The ship passenger list info. says Austria, but their adult children list different places of origin for Charles and Christina Dedi (Anton & Anna's son). In one record, it says North Alpen Switzerland, and in another, Holland; in still another account, Cologne, Germany. The location of Anna's birth is also unknown. Death info. is unknown. Any help is appreciated. Thank you.