Tuthill attended public and private schools.
In April 1821, Tuthill was elected to the 17th United States Congress Congress but died before he could take his seat. The congressional elections were held this time after the congressional term had already begun on March 4, and it is uncertain if Tuthill ever received his credentials. Congress met on December 3, 1821, and Charles Borland, Jr., who had been elected in the meanwhile in a special election, took this seat.
Tuthill was interred in Riverside Cemetery in Marlboro, New York.
Congressman Joseph H. Tuthill was his nephew.
- United States Congress. "Selah Tuthill (id: T000438)". Biographical Directory of the United States Congress.