William McArthur (Lord Mayor of London) William McArthur (Lord Mayor of London) Sir William McArthur, (6 July 1809 – 16 November 1887) was an Irish businessman and Lord Mayor of London, and a Liberal Party politician who sat in the House of Commons from 1868 to 1885. McArthur was born at Malin, County Donegal, the son of Rev. John McArthur, a Methodist minister in Londonderry. In 1821 he was apprenticed to a woollen draper in Enniskillen. He moved to Lurgan in 1825 where he was a merchant and in 1831 established a drapery business in Derry initially in a partnership, but later on his own. In
Lord Mayor of London government ministers, businessmen and dignitaries; furthermore, they conduct several foreign visits of their own so as to promote British financial sectors. Banquets hosted by the Lord Mayor serve as opportunities for senior Government figures to deliver major speeches. At the Lord Mayor's Banquet (held on the Monday after the Lord Mayor's Show), the Prime Minister delivers the keynote address. At the Banker's Dinner in June, the Chancellor of the Exchequer delivers a speech known as the "Mansion House Speech", which takes its name from the Lord Mayor's residence. At the Easter Banquet, also hosted each year at the Mansion House,