Items in New York Heritage are organized into collections, which provide additional context for understanding their significance and meaning.

Utica resident Kathleen Oser was involved in many civil rights and women’s rights movements, especially the National Organization for Women (NOW.) The collection contains materials relating to Osner’s involvement in NOW.
Documents relating to the Amherst League of Women Voters in the mid to late 20th century.
Newsletters, newspaper articles, publications, meeting minutes and scrapbooks chronicling the history of the League of Women Voters, a nonpartisan political organization from the early 20th century to present day.
Photographs relating to the Love Canal environmental tragedy in the late 20th century.
The Maurice Leyden Collection consists of diaries, photographs, correspondence, financial records, essays and military records of Maurice Leyden. The collection also includes twenty-two diaries, dating from 1860-1886 and written Sarah Woodruff Pottle, a relative of Mr. Leyden, as well as, four diaries spanning the years between 1897 and 1908 and belonging to Blanche Leyden, Maurice Leyden's daughter.

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