This is a Message Board Post that is gatewayed to this mailing list. Surnames: Mahrer, Michels, Rockenstein, Classification: Query Message Board URL: http://boards.ancestry.com/mbexec/msg/an/Tk.2ADE/272.1 Message Board Post: My great grandfather, Henry Mahrer born July 13, 1815 in Moehlin, Canton Aargau, Switzerland. Immigrated by way of Rotterdam Holland to Pennsylvania, later to Iowa, then to Dakota territory.