As of 1847, Peter Horn, his wife Maria Albrecht, and their children were living in Augustwalde, West Prussia. They moved to Hahnsau where they are listed in Household No. 3 on the 1857 Census.
- 1857 Census of Hahnsau.
- Augustwalde (Warmian-Masurian Voivodeship, Poland) (Global Anabaptist Mennonite Encyclopedia Online)
- GRANDMA Database.