A clue to find would be 'to find the immigration ship's log of the Mauch's coming to America.' Who was the first Mauch's in America? About when they came? Then the ship's log would list all the family members? I don't know how George and Elizabeth met. George's first wife (my ggrandmother) died in passage to America. Possible connection. I've got Elizabeth being born around 1815 and perhaps, married prior to marrying my grandfather.