Jonathan Knight was an educator, surveyor, state legislator, and congressman.
He served three years as county commissioner. In 1822 he was elected to the legislature and served six years. In 1854 he was elected a representative in the thirty-fourth congress from Pennsylvania.
In 1825 he was appointed a commissioner to extend the national road from Wheeling through Ohio and Indiana to the eastern line of Illinois. He was the chief engineer of the Baltimore and Ohio Railroad, 1829-42.
Who Was Who in America. Historical Volume, 1607-1896, Chicago, 1963, p. 298; Herringshaw's Encyclopedia of American Biography, p. 562.