1849
Langenheim Brothers [Frederick and William Langenheim], 1860
Langenheim Brothers [Frederick and William Langenheim], 1850
Langenheim Brothers [Frederick and William Langenheim], 1849
Langenheim Brothers [Frederick and William Langenheim], 1853
Langenheim Brothers [Frederick and William Langenheim], 1845
Langenheim Brothers [Frederick and William Langenheim], 1856
![[William Langenheim]](https://media.getty.edu/iiif/image/f64afb52-1c26-4e7f-8267-fb93d9bd805b/full/843,/0/default.jpg)
![[Frederick Langenheim]](https://media.getty.edu/iiif/image/126afa61-772c-4273-aefb-489fbb74bdb9/full/843,/0/default.jpg)
![[Portrait of a Seated Woman in Matron Cap]](https://media.getty.edu/iiif/image/cbbce70d-9af6-4d1e-915c-2854a5aca980/full/843,/0/default.jpg)
![[Portrait of an Unidentified Seated Man]](https://media.getty.edu/iiif/image/db494b19-d3d6-40a6-99c0-24e9c025c30a/full/843,/0/default.jpg)
![General View from American Side. [Niagara Falls]](https://media.getty.edu/iiif/image/1ce1938c-7811-4a5b-9b0b-95d2e6633d4a/full/843,/0/default.jpg)
![Passaic Falls, Patterson [sic], N.J.](https://media.getty.edu/iiif/image/e4b93df3-bce1-4047-bc0c-c21b30b8795b/full/843,/0/default.jpg)