John Gregg (Guildford MP) Member of the Parliament of England For other people named John Gregg, see John Gregg (disambiguation). John Gregg (died 1431 or after) of London and Guildford, Surrey, was an English politician and grocer. He was a Member (MP) of the Parliament of England for Guildford in 1417 and May 1421.[1] References[edit] ^ "GREGG, John, of London and Guildford, Surr. | History of Parliament Online". This article about a 15th-century Member of the Parliament of England is a stub. You can help Wikipedia by expanding it.vte