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
William Mainwaring industry to the "Special areas" in South Wales suffering unemployment, pointing to statistics which showed they had been developed elsewhere. Outside his normal area, Mainwaring was named as a member of the Royal Commission on Rhodesia in 1938. He went on a long visit to the territories in August 1938 to gather evidence, and then went on to visit the Rand in South Africa. Mainwaring endorsed the report of the Royal Commission which called for a single Governor for the three territories of Northern Rhodesia, Southern Rhodesia and Nyasaland. During the wartime coalition, Mainwaring was not always prepared to go