Day, Helen. List/Manifest of Alien Passengers for the United States Vessel Wapen Von Amsterdam. Photograph. Queens, NY, February 13, 2022.

A ship manifest from 1920 including one Maria Polak, another child who it is suspected died in Ellis Island Hospital at the age of 6 and buried in a mass grave at Maple Grove Cemetery. This manifest provides valuable evidence tracking Maria’s path to the United States.