Joseph Heron served as what type of senior official of many municipal governments in the English-speaking world?
Joseph Heron: Sir Joseph Heron (3 January 1809 - 23 December 1889) was a British lawyer, politician and administrator. Joseph Heron:  He served as Town Clerk of Manchester for over forty years playing a dominant role in the city's growth throughout the 19th century. Municipal clerk: A clerk is a senior official of many municipal governments in the English-speaking world.
Clerk