Hello Louise; I couldn't find Wilelmina's immigration records but I did find some census records--see below. Cheers, Masugu 1870 United States Federal Census Name: Wilhelmine Knipfer Estimated birth year: abt 1833 Age in 1870: 37 Birthplace: Prussia Home in 1870: Troy, Iowa, Iowa Family: Name Age Trade PoB Godfrey Knipfer 39 Farmer Bavaria Wilhelmina Knipfer 37 Keeping house Prussia Julia 9 - IA Rosy 8 - IA Matilda 6 - IA Mary 4 - IA Clara 8 Mos - IA Race: White Gender: Female Post Office: Stellapolis Source Citation: Year: 1870; Census Place: Troy, Iowa, IA; Roll: M593_396; Sheet: 11; Page: 327; Image: 663. 1880 United States Federal Census Name: Godfrey Knipfer Home in 1880: Fillmore, Iowa, Iowa Age: 49 Estimated birth year: abt 1831 Birthplace: Saxony Relation to head-of-household: Head Spouse's name: Wilhelmima Father's birthplace: --- Mother's birthplace: --- Occupation: Miller Marital Status: Married Race: White Gender: Male Cannot read/write: Household Members: Name Age Trade PoB Godfrey Knipfer 49 Miller Saxony Wilhelmima Knipfer 48 Keeping house Prussia Julia Knipfer 19 Housekeeper IA Rosa Knipfer 18 Clerk IA Matilda Knipfer 16 Clerk IA Mary Knipfer 14 Housekeeper IA Clara Knipfer 10 - IA Frank Knipfer 2 - IA Source Citation: Year: 1880; Census Place: Fillmore, IA, IA; Roll: T9_345; Family History Film: 1254345; Sheet: 22B; Page: 304; ED: 213; Image: 0471. 1910 United States Federal Census Name: Gottfrid Knepper [Gottfrid Knipfer] Age in 1910: 79 Estimated birth year: abt 1831 Birthplace: Germany Relation to Head of House: Father Father's Birth Place: Germany Mother's Birth Place: Germany Home in 1910: Fillmore, Iowa, Iowa Marital Status: Widowed Race: White Gender: Male Year of Immigration: 1854 Household Members: Name Age Frank Knepper 32 Mattie E Knepper 29 Selva Knepper 6 Fern C Knepper 4 Emma D Knepper 9/12 Gottfrid Knepper 79 Source Citation: Year: 1910; Census Place: Fillmore, IA, IA; Roll: T624_407; Sheet: 7A; Page: 64; ED: 41; Image: 128.