While I can't offfer any concrete prospects, you might go through the drill
of looking through the US Census and NY State Census for Buffalo, as well as
checking the vital records for births/deaths/marriages to document whatever
you can.. You might also contact the City Historian, as well as the Erie
County Historical Society, for current addresses of local cemetaries, and
write them for any surname records.. That's what I'm doing for my Buffalo
family that moved to NY City...
Don Jaffa
And to boot.. I hired a professional to do the drudge work.