Note on GMOL: 802252
The Erica Janzen submission says that this marriage was childless, and that Peter and Anna in 1906 took a foster son, whom they later adopted--namely the Waldemar listed as a child in this family. After Anna Levchenko Peters' death, foster son Waldemar went to an orphanage. Anna died of cancer at the estate ("Chutor") of Peter's sister Katharina.