Abstract Thomas Houseworth and Co. is the company continued by Thomas Houseworth after his partner George Lawrence retired in 1869. Houseworth was an optometrist and stereograph merchant located in San Francisco, Calif. The images in this collection contain reprints of Lawrence and Houseworth images, as well as newly created images. Houseworth was a major player in the stereograph market until the early 1870s, and he took numerous measures to make sure his work remained viable, including introducing...