Robert Bruce Crane (1857 ??October 30, 1937) was an American painter. He joined the Lyme Art Colony in the early 1900s. His most active period, though, came after 1920, when for more than a decade he did oil sketches of woods, meadows, and hills. He developed into a Tonalist painter. Tonalism was an artistic style that emerged in the 1880s when American artists began to paint landscape forms with an overall tone of colored atmosphere or mist. Between 1880 and 1915, dark, neutral hues such as gray, brown or blue, often dominated compositions by artists associated with the style. During the late 1890s, American art critics began to use the term 'tonal' to describe these works.