Thanks to everyone who sent hints and images for my ggf's manifest.
I realized that in addition to not documenting what I found, that I had put the arrival port as NY in my searches. Instead he went from Hamburg to England; from England to Quebeq; and then apparently traveled over land to get to NY.
So the lesson I learned is NOT to assume they took direct passages to NY.
Thanks again! you all rock!
Sheryl Stahl (Los Angeles)