In 1901, Herron moved to
Pittsburgh. He worked for contractors as a brick layer for a time in
Canton, Ohio. He returned to Pittsburgh and continued as a brick layer. In Pittsburgh, he worked on the
Frick Building, Bessemer Building, Farmers Bank Building, the
Carnegie Library of Pittsburgh,
Mercy Hospital, House Building, Iroquois Apartments, Manufacturers Building, the Oliver power house, and the train shed of the
Wabash Pittsburgh Terminal. He was elected secretary of the
Bricklayers Union No. 2 of Pennsylvania. He was president of the Bricklayer's Union and was a delegate to the national convention in Minneapolis. Mayor
William A. Magee appointed Herron as city health director. In 1913, he became a member of the Pittsburgh city council as its labor representative. He served as president of the city council from 1930 to 1933. In April 1933, following the resignation of
Charles H. Kline, he became
mayor of Pittsburgh. He won the Republican nomination for the next mayoral election, but lost to Democratic nominee
William N. McNair. During his term, the city adopted the repeal of the commonwealth's "Sunday
Blue Laws" prohibiting business and sports for 24 hours. The repeal of the Blue Laws made it possible for the future
Pittsburgh Steelers to join the
National Football League. In June 1934, Herron was appointed as a member of the board of visitors. Following the death of the commissioner-elect James F. Malone, Herron was elected county commissioner in December 1935 by judges of the Common Pleas Court. He was re-elected twice and was minority member of the board for three terms. Prior to his death, he won one of two Republican nomineess for the 1947 county commissioner election. ==Personal life==