You can contact the NYG&B at: 122 East 58th Street, New York, NY 10022-1939.
Their phone is 212 755-8532. Open Tuesday thru Saturday 930 a.m. - 5:00
p.m., closed on Monday.
I do know they have a research service for members for a nominal fee, am not
sure if it applies to non-members as well. Non-members may use the library
for a $5.00 fee, but can NOT have access to the manuscripts or microfilms.
They have an excellent collection in their library including an extensive