He was the eldest son of Henry Moon, parliamentary agent at Westminster. Dunwoody was born in Fulham, London, where her father was Labour parliamentary agent. She married Henry Lovett Cameron who was a parliamentary agent in the Treasury in 1867. The City Remembrancer is a Roll A parliamentary agent. Bulwer acted as parliamentary agent until 1838, when he was succeeded by Charles Buller. In 1909 he became the South Wales Miners' Federation parliamentary agent.