John Locke (February 19, 1792 – July 10, 1856) was an American naturalist, professor, photographer, and publisher.

[2] John Locke was born in Lempster, New Hampshire on February 19, 1792.

He graduated from Yale School of Medicine in 1818, but gave up medical practice in favor of teaching.

[1] Locke made a geological survey of Ohio in 1838,[1] some of which was included in Ephraim George Squier and Edwin Hamilton Davis' Ancient Monuments of the Mississippi Valley (1848).

[3] He was elected as a member of the American Philosophical Society in 1844.