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

The New York Ordnance Works Collection consists of photographs, maps, and official documents related to the New York Ordnance Works (NYOW), which was in active production during World War II.
The Oral History collection from the New York State Military Museum comprises over 2,100 interviews of veterans and civilians.
The Patrick Casey Collection consists of an autobiographical narrative and two diaries.
Commemorative ledger containing personal records, recollections, and cemetery records of local soldiers who served in the Ellis Post 52 during the Civil War.
A ledger containing records from soldiers who served in Ward Post 191 during the Civil War.