He served as secretary of the Pennsylvania land office from 1818 to 1821, and State treasurer from 1821 to 1827. He was
Treasurer of the United States from June 4, 1828 to November 1829. Clark was elected as an
Anti-Masonic candidate to the
Twenty-third and
Twenty-fourth Congresses. He was a member of the State constitutional revision commission in 1837. After Congress, he engaged in agricultural pursuits and died near Dauphin in 1851. He was interred in English Presbyterian Cemetery. ==External links==