William Mainwaring (English politician) Burdett. Mainwaring had previously resisted Burdett's calls for an inquiry into prison abuses, particularly at Coldbath Fields Prison. Mainwaring was defeated by Burdett but the election was declared void in 1804 and in the following contest William's son George Boulton Mainwaring was elected. The result was reversed in favour of Burdett in 1805 and the back in favour of Mainwaring Junior in 1806. Mainwaring did not contest the 1807 election and Burdett was not elected. He died in 1821, leaving one son. William Mainwaring (English politician) William Mainwaring (6 Oct 1735 – 28 February 1821) was the MP for Middlesex
Sam Mainwaring Sam Mainwaring Samuel "Sam" Mainwaring (15 December 1841 – 29 September 1907) was a Welsh machinist and socialist political activist who was a founding member and key leader of the Socialist League, one of the first socialist political parties in Britain. In his later years, he turned from Marxist socialism to the libertarian socialist doctrine of anarcho-communism. He is best remembered as the father of the term "anarcho-syndicalism". Known to his contemporaries as Sam, Mainwaring was born 15 December 1841 in Penrhiwtyn, Neath, Wales. He was a native speaker of Welsh and retained an affinity for the tongue throughout his