Peter Carr (January 2, 1770 – February 17, 1815) was an American educator and politician who served several terms in the Virginia House of Delegates.

Carr triggered the final breach between his uncle and George Washington by writing the latter a seemingly sympathetic letter on September 27, 1797 [3] under the pseudonym "John Langhorne.

[2][7] In 1802 journalist James Thomson Callender claimed that Thomas Jefferson had fathered children with one of his slaves, Sally Hemings.

These claims were given credence due to several factors such as Jefferson's presence at Monticello during the time periods that the children were conceived and the lack of pregnancies when he was not present.

[8] These claims are still given credence by some scholars, even though DNA tests in 1998 ruled that the Carrs could not have fathered one of Hemings's children, Eston.