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...

Abstract Carleton E. Watkins was a 19th century photographer based in San Francisco who made his name documenting the rapid growth of the American West, and whose name is frequently associated with the birth of the photographic medium – particularly with early landscape photography. This collection contains albumen prints taken throughout his career, between the years of 1856 and 1885. The bulk of photographs taken depict the Yosemite Valley and Mariposa Grove, and were taken at various points...