Good day, I am trying to find the ship manifest for my grandfather Benjamin/Ben Kaplan (previously known as KAPCHITZ). His petition for naturalization shows that he left Rotterdam, Holland going to New York, New York in April 1904 on the Potsdam. I have looked up the ship site and went through all of the ships that came in during 1904, and I have been unable to locate him on any manifest. He would’ve been 19 years old at the time. Can anybody help? Thank you.
Donna Kanlan