Here is the webpage for a museum, well sort of, in NYC. It is
associated with the Lesbian and Gay Community Services Center in New York
City. At minimum, it'll be a link.
Lesbian and Gay history, in most museums, is still in the closet. It
wasn't even a topic or a hint at last weekend's National Council on Public
History annual meeting (which is a terrific organization that tries).
http://www.gaycenter.org/
Good Luck,
Mike Radice
The Union Institute