Dr. Samuel A. Bemis (1793–1881) was one of the earliest photographers in the United States. A small number of his daguerreotypes have survived. Bemis was a Boston dentist when in April 1840 he acquired an early camera and became one of the first Americans to take a photograph. His extant daguerreotypes include views of Boston and of the White Mountains of New Hampshire. These images are the earliest known American photographs of natural landscapes.