Alfred Thomas Agate

Alfred Thomas Agate
Self-portrait
Born	(1812-02-14)February 14, 1812 Sparta, Ossining New York
Died	January 5, 1846(1846-01-05) (aged 33) Washington, D.C.
Nationality	American
Known for	Painting, Miniature

Agate's portrait of Biraban, from L. E. Threlkeld's book A Key to the Structure of the Aboriginal Language, published in 1850

Agate's portrait of a Kalapuya man, sketched in Oregon during the United States Exploring Expedition.

Alfred Thomas Agate (February 14, 1812 – January 5, 1846) was an American painter and miniaturist.

Agate lived in New York from 1831 to 1838. He studied with his brother, Frederick Styles Agate, a portrait and historical painter. He later went on to study with Thomas Seir Cummings.^{[citation needed]} By the late 1830s, Agate was exhibiting his work at the National Academy of Design in New York, and established himself as a skilled painter in oils. He was elected into the National Academy of Design as an honorary member in 1840.

Agate drew landscapes, portraits, and scientific illustrations. For much of his landscapes,^{[citation needed]} Agate used a camera lucida, a device which projected the scene onto a piece of paper for purposes of tracing.