General Sources - Primary & Secondary
Early History
19th Century & Civil War
The 20th Century
Community Service Society Photographs
Photographs from between the late 19th Century and into the 1950s depict urban poverty, unsafe tenement housing, inadequate hygiene in public areas, and other pressing social issues in late-19th- and early-20th-century New York.
Radical America
digital edition of Radical America, a product of the campus-based New Left of the late 1960s, specifically the Students for a Democratic Society (SDS)