Since these are settlements, not features, there is nothing in the Geographic Names database. I suggest you contact the town historian:

TOWN OF BETHLEHEM	
Joseph A. Allgaier
Town Hall
445 Delaware Ave.
Delmar, NY 12054

>>> Claire Louise Shambaugh <[log in to unmask]> 07/27 7:12 AM >>>
Any thoughts on the why, for whom or by whom the above villages/hamlets
were named?  Louise