Career
Born in Boston, Massachusetts, McGowan served in the United States Army during World World War World War II He received his bachelor"s and master"s degrees from Framingham State University and was a real estate appraiser and broker. He served on the Dedham, Massachusetts Board of Selectman and was chairman. He then served in the Massachusetts House of Representatives 1967-1978 as a Democrat.
He then served as sergeant at arms for the Massachusetts House of Representatives 1978-1988.
He died in Dedham, Massachusetts.