The Photograph Collection is comprised of well over 15,000 images. Four major collections include:

The Blackham-Eggers Collection
Dr. George Blackham was a well regarded and civic minded doctor who lived from 1846 to 1923 and who took a number of photographs of Dunkirk with a view camera, the photos then being oprfinted by George A.H. Eggers, a local portrait photographer.

The Meisnitzer Collection
Meisnitzer lived and worked in Dunkirk from              as             . He was an avid amateur photographer who took a number of photographs of Dunkirk, including a series of photographs of construction projects.

The Knowlton Collection
This is a series of photos taken by Cecil Knowlton, owner of a local photography store in Dunkirk, N.Y.

The Hodorowicz Collection
Matthew Hodororwicz  served as main photographer in preparing a book by J.A. Chewning called Dunkirk, New York: Its Architecture and Urban Development.. He donated the 4x5 negatives to the museum in 2018.