Nick,
Unbelievably, while looking for some of the names I found to give you the info, I found 64 Moore Street. I don't think it was the person I was looking for, unfortunately. I was following a lead and one of those ah-ha moments. I have my husband's great-grandparents' (Harris and Rachel Stahl) passenger record, and it states they are going to brother Jacob at 64 Moore Street, Brooklyn. When I was looking it over yesterday, I realized they don't mention Jacob's last name. I had my ah-ha moment then, realizing that maybe it was Rachel's brother (so looking for Cohen possibly), or Jacob hadn't picked or been assigned the same "new" last name as Harris. The story is Stahl is not the name they had in Russia, which makes sense. My husband seems to remember hearing it was completely different, and one of his brothers thought it was shortened. Either way, I was hoping for a clue. the passenger record is from 1893. The 1890 census would have been helpful, but people moved around so much who knows where they were from one year to the next. In the 1900 census, Harris and Rachel were living almost directly behind 64 Moore Street, so I will have to peruse the whole area to find something.
Sorry to ramble and thanks so much for the offer.
Kath