John H. Devlin (May 27, 1891 – July 20, 1967) is a former Democratic member of the Pennsylvania State Senate who served from 1961 until his death in 1967.
[2] He also served in the Pennsylvania House of Representatives.
[3] Before serving in the Pennsylvania House of Representatives, Devlin served as a special agent of the FBI (1940–1947), was a real estate deputy for the Allegheny County Sheriff (1947–1951), had a legal practice in 1951, and was Assistant D.A.
of Allegheny County (1956–1964).
[4]