New York State Museum
http://www.nysm.nysed.gov/

New York State Archives
http://www.archives.nysed.gov/

New York State Library
http://www.nysl.nysed.gov/

National Archives and Records Administration
https://www.archives.gov/education/history-day

New York Historical Society
https://www.nyhistory.org/collections

United States Library of Congress
https://www.loc.gov/

New York Heritage Digital Collections
https://nyheritage.org/

Schlesinger Library on the History of Women in America
https://guides.library.harvard.edu/schlesinger/NHD2019-2020