Sir John Mainwaring, 2nd Baronet was laid to rest at Over Peover. He had married Elizabeth, eldest daughter of Roger Whitley of Peel, Cheshire and had several sons and daughters. He was succeeded in the baronetcy by his eldest surviving son Thomas. Sir John Mainwaring, 2nd Baronet Sir John Mainwaring, 2nd Baronet (8 May 1656 – 4 November 1702) was an English politician who sat in the House of Commons from 1689 to 1702. Mainwaring was the son of Sir Thomas Mainwaring, 1st Baronet of Peover Hall and his wife Mary Delves, daughter of Sir Henry Delves, 2nd Baronet, of Dodington. Mainwaring succeeded to the
William Mainwaring Federation of Great Britain in 1924, but was narrowly defeated by A. J. Cook. Mainwaring polled 49,617 against Cook's 50,123 votes. Cook went on to win the post and vacated his previous post as miners' agent for the Rhondda district; Mainwaring was appointed to succeed him. He was one of two agents for the district, and with his fellow agent Alderman David Lewis, Mainwaring had to fight the attempts by members of the Communist Party of Great Britain to gain influence. In 1928, under Communist influence, the lodges of the Rhondda Miners' Federation called for a membership ballot to elect