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 Cathedral. The Lord Mayor also heads the City's Commission of Lieutenancy, which represents the Sovereign in the City of London (other counties usually have Lord Lieutenants, as opposed to Commissions), and annually attends the Treloar Trust (named after Sir William Treloar, Lord Mayor in 1906), in Hampshire. The Treloar Trust runs two educational sites for disabled children, a school and college. The residence of the Lord Mayor is known as Mansion House. The creation of the residence was considered after the Great Fire of London (1666), but construction did not commence until 1739. It was first occupied by a Lord