William Massey-Mainwaring William Massey-Mainwaring The Honourable William Frederick Barton Massey-Mainwaring (28 May 1845 – 12 March 1907) was an Irish art collector and Conservative Party politician in the United Kingdom. The fifth son of Eyre Massey, 3rd Baron Clarina and his wife Susan Elizabeth "née" Burton, he was originally known as William Frederick Barton Massey. Educated at Trinity College Dublin, he was called to the bar at the Inner Temple, London. In 1872 he married Isabella Anne Milman, a widow and only child of Benjamin Lee Mainwaring of Knaresborough. He assumed the surname Massey-Mainwaring on marriage. Massey-Mainwaring was a well-known art collector
Captain Mainwaring clerk, chief clerk and eventually manager), Mainwaring reveals in the same episode that he considers it a mere "tinpot branch" and his career is at a seemingly permanent standstill, as revealed in A. Wilson (Manager)?: whenever he applies for promotions he is always turned down due to his unimpressive background. Mainwaring's pomposity and snobbery work against him, as he is frequently dependent on those in the Home Guard that he considers beneath him, such as Sergeant Wilson, his chief clerk at the bank with whom he shares an antagonistic friendship and Private Walker, a black-marketeer who interrupts during Mainwaring's lectures