I need lots of help. My gggrandmother was Wilhelmine Heuer Peterman. Her father's name was Johann (John) Heuer. I'm looking for any information on her father, mother, brothers and sisters. She had a sisters Frederika, Caroline, and Theresa. Her brothers were Ferdinand or Fermand and Frederick. They arrived in the US in 1839 and appear on the 1850 census in Washington County and in Ozaukee County by 1870.