W. & F. Langenheim (1843–1874)
- Frederick Langenheim
- Professor Schneider's Children
- Frederick Langenheim
- Frederick Langenheim
- Frederick Langenheim
- William and Sophia Palmer Langenheim
- [Mrs. Thomas Ustick Walter and Her Deceased Child]
- Three Men Playing Cards
- Frederick David Langenheim
- Frederick Langenheim Looking at Talbotypes
- William Langenheim
- Panorama of Niagara Falls
- [Middle-aged Man with Chinstrap Beard, Hand Tucked Inside Buttoned Jacket]
- [Seated Man in Floral Vest]
- William Langenheim
- Eclipse of the Sun
- William Langenheim
- William Langenheim