In 1902, Beauchamp joined the Liberal Party and the same year he married Lady Lettice Mary Elizabeth Grosvenor, the daughter of Victor Grosvenor, Earl Grosvenor [REF].
While serving in Parliament, Beauchamp also voiced his support for a range of progressive measures such as workmen's compensation,[REF] an expansion in rural housing provision, an agricultural minimum wage,[REF] improved safety standards[REF] and reduced working hours for miners [REF].