Erie County, New York Courthouse
Erie County Clerk
25 Delaware Avenue
Buffalo, New York 14202
Collection: deeds, naturalization records from 1827 to 1929, Marriages from 1878 to 29 April 1935 - and a few before 1878. 
Erie County Surrogate's Court
Erie County Hall
92 Franklin Street
Buffalo, NY 14202
For Guardianships, Email: firstname.lastname@example.org or call 716-845-2562
Information regarding estate records can also be emailed to email@example.com or firstname.lastname@example.org.
Collection: Wills of deceased persons and trust documents.Petitions for probate, administration, judicial settlement, and guardianship.(Although the court does maintain adoption records, they are sealed by New York State law and not available without court order.) Miscellaneous documents in connection with estates, some trusts and guardianships. Note: Many records stored off-site, and retrieval takes 2 to 4 days, depending on staffing levels when requested.