I'm looking for any information for John and his wife Mary Alice (Crawford) Erickson. Parents/siblings names for them, immigration/travel records, marriage records. The two oldest of their children were born in Pennsylvania so it makes sense they met and married there before moving to Iowa. I have found a Mary Alice Crawford at age 11 in an PA 1870 census but I don't know her parents or siblings name to corroborate the record as being her. They are my Great Grandparents.
Thanks