Thaddeus Edward Carhart (born February 16, 1950)[1] is an American writer.

[3] His book Across the Endless River is a historical novel about Jean-Baptiste Charbonneau, the son of Sacagawea, and his intriguing sojourn as a young man in 1820s Europe.

He graduated with a degree in Anthropology from Yale University and also worked as an interpreter for the State Department.

At the time of this writing, Thad Carhart resides in Paris with his wife and two children.

Thad Carhart describes his writing interest as being in the mid-1820s Europe.