He attended St. Thomas College (now the University of Scranton) and worked for the Internal Revenue Service as a deputy collector from 1933 to 1938.

When his father died suddenly from a stroke in 1938,[1] Munley was elected to the Pennsylvania House of Representatives in 1939.

[2] After being re-elected to a fifth term, Munley suffered a heart attack and died at his home in Archbald, Pennsylvania.

[3] Following his death, his wife Marion L. Munley won a special election to become the first woman to represent Lackawanna County in the state house.

Before his death, Munley had drafted[clarification needed] by which the Commonwealth would provide financial assistance to the anthracite's region industrial rehabilitation effort.