Thomas Moran (1837 – 1926) from Bolton, England was an American painter and printmaker of the Hudson River School in New York whose work often featured the Rocky Mountains. Moran and his family, wife Mary Nimmo Moran and daughter Ruth, took residence in New York where he obtained work as an artist. He was a younger brother of the noted marine artist Edward Moran, with whom he shared a studio. A talented illustrator and exquisite colorist, Thomas Moran was hired as an illustrator at Scribner's Monthly. During the late 1860s, he was appointed the chief illustrator for the magazine, a position that helped him launch his career as one of the premier painters of the American landscape, in particular, the American West.
Moran traveled to England in 1862 to see Turner's work. From that point on, he emulated Turner's use of color, his choice of landscapes, and was inspired by his explorations in watercolor, a medium for which Turner was particularly well-known. During the 1870s and 1880s, Moran's designs for wood-engraved illustrations appeared in major magazines and gift oriented publications. Although he mastered multiple printing media including wood-engraving, etching, and lithography, which he learned from his brothers, he received renown for his paintings in oil and in watercolor. The height of his career coincided with the popularity of chromolithography, which Moran used to make color prints of his works, so that they could be widely distributed. He was also one of the leaders of the etching revival in the United States and Great Britain.
Moran was married to Scottish born Mary Nimmo Moran (1842–1899), an etcher and landscape painter. The couple had two daughters and a son. His brothers Edward (1829–1901), John (1831–1902) and Peter (1841–1914), as well as his nephews Edward Percy Moran (1862–1935) and Jean Leon Gerome Ferris (1863–1930) were also active as artists. He died in Santa Barbara, California on August 25, 1926.
Moran along with Albert Bierstadt, Thomas Hill, and William Keith are sometimes referred to as belonging to the Rocky Mountain School of landscape painters because of all of the Western landscapes made by this group.