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 at the Central Labour College in London where he studied economics. After two years at the College, he returned to the coal face, but in 1919, Mainwaring was appointed as a Lecturer in Economics and Vice-Principal of the Central Labour College. This college, which renamed as The Labour College in 1920, was founded by the South Wales Miners' Federation and the National Union of Railwaymen, but most of the students were South Wales miners; opponents suspected the college was "class teaching for revolutionary aims". Mainwaring ran for the South Wales nomination for a candidate to be Secretary of the Miners