**Frank Jay Haynes (1853–1921)**, professionally known as F. Jay Haynes, was an American photographer, publisher, and entrepreneur renowned for his extensive documentation of the American West. Born on October 28, 1853, in Saline, Michigan, he developed an early interest in photography while growing up in Detroit. He secured an apprenticeship in Wisconsin and opened his first studio in Moorhead, Minnesota, in 1876.

Haynes quickly established himself through commercial work, including portraits and views of the region’s burgeoning bonanza farms. In 1876 he received a pivotal commission from the Northern Pacific Railway to photograph along its expanding routes, equipping a converted Pullman car as a mobile gallery and darkroom. This partnership led to his appointment as the railroad’s official photographer and took him across the western territories until around 1905.

His most enduring legacy centers on Yellowstone National Park. Haynes first visited in 1881 at the encouragement of Superintendent Philetus Norris and returned annually for decades, producing hundreds of images of its geysers, landscapes, and thermal features. He operated photo studios and souvenir shops within the park from 1884 onward, later expanding into postcards and guidebooks that popularized the park’s wonders. His son, Jack Ellis Haynes, continued the family enterprise, which remained active into the mid-twentieth century.

Haynes’s documentary style captured the transformation of the frontier with clarity and commercial appeal. His photographs of Old Faithful and other iconic sites became among the most widely reproduced images of the American West, helping shape public perception of national parks and fueling tourism. Today his work resides in major collections, including the Smithsonian American Art Museum, preserving a vital visual record of late-nineteenth-century expansion and conservation.