Isaac Sprague

Isaac Sprague (September 5, 1811 – 1895) was a self-taught landscape, botanical, and ornithological painter.

[citation needed] In 1843, Sprague served as an assistant to Audubon on an ornithological expedition up the Missouri River, taking measurements and making sketches.

In 1960, Harvard University's Houghton Library exhibited approximately 100 of Sprague’s paintings, drawings and illustrations.

In 2003, Sprague's works were included in the Hunt Institute’s exhibition American Botanical Prints of Two Centuries.

Major collections of Sprague's work are held by the Boston Athenaeum, the Museum of Fine Arts (Boston), the Smithsonian Institution (on indefinite loan to the Hunt Institute for Botanical Verification, Carnegie Mellon University), and by Harvard University.