1915–1931
Unknown, 1799
Unknown, -540
Unknown, 1860
Unknown, -550
Unknown, -2700
Unknown, 1908
Unknown, -425
Unknown, 1850
Unknown, -525
Unknown, 1865
Unknown, 1934
Unknown, 1870
![[Two women outside factory]](https://media.getty.edu/iiif/image/d11ed2da-3598-496b-be3c-51bdb6ff1bf9/full/843,/0/default.jpg)
![[Children in foreground, woman in background]](https://media.getty.edu/iiif/image/9a5fc1d6-ed98-42bb-a015-2c30e92fb72c/full/843,/0/default.jpg)
![[Coal Dock of Penna. Coal Co., Newburgh, N.Y.]](https://media.getty.edu/iiif/image/24dce507-3d5a-41df-8e4b-1635f63e92d7/full/843,/0/default.jpg)