New York City

MANHATTAN (fee for service site):
  •  1792-1906 (filed in ALL 13 NY Courts) 

MANHATTAN (fee for service site):
  •  1907-24 (filed in NY County Supreme Court only)

MANHATTAN:
  •  1906-1959 (filed in NY's Southern District Court)

BROOKLYN (Kings County): 
  • 1907-1924
 
BRONX:
  • 1914 -1952
 
 
 
 

New York State

ALBANY COUNTY
     • 1821-1991

NASSAU COUNTY
  • 1899 - 1986

ONTARIO COUNTY
  • 1808-1956

ROCKLAND COUNTY
     • 1812-1991

SUFFOLK COUNTY
  • 1853 - 1990

WARREN COUNTY (main page)
  • 1813 - 1906 (natualization  index)
  • 1907 - 1955 (petitions index)

WESTCHESTER COUNTY
     • 1808-1927