The Guest family are a British family of the 18th, 19th, 20th, and 21st centuries who, among other things built a huge industrial business in the Dowlais Iron Company and later in Guest, Keen and Nettlefolds.
John Guest (1722-1785/25 November 1787) was a brewer, farmer and coal merchant in Broseley, Shropshire. He collaborated with Isaac Wilkinson in starting the Plymouth Ironworks in 1763 and there came to the attention of Thomas Lewis and the other Dowlais partners. He moved to Dowlais and was appointed manager of the works on 30 April 1767. He built his first house at Morlais Brook, Gellifaelog but, isolated from his family, became a "lonely and melancholy man". By 1767, Guest had moved most of his family to Dowlais. His children were:
- Thomas Guest (infra); and
- Sarah Guest who married William Taitt, (died 1815) another of the Dowlais partners.
- John Josiah Guest (infra); and
- Thomas Revel Guest (1790–1837), a partner in Dowlais with two shares and the firm's agent in Ireland. Along with his brother, he was one of the promoters and original shareholders of the Taff Vale Railway. On his death he left one share to his brother and one to his nephew Edward John Hutchins.
Thomas did much to modernise production at Dowlais, employing several of his relatives, including:
- Cornelius Guest;
- Charles Guest; and
- George Guest.
Sir Josiah John Guest, 1st Baronet
John Josiah Guest (1785–1852) married:
- 11 March 1817: Maria Elizabeth Ranken (died January 1818), the third daughter of William Ranken from Ireland.
- 29 July 1833:Lady Charlotte Elizabeth Bertie (1812–1895), eldest child of Albemarle Bertie, 9th Earl of Lindsey. They had ten children, including:
Ivor Bertie Guest, 1st Baron Wimborne
Ivor Bertie Guest, 1st Baron Wimborne (1835–1914), married Lady Cornelia Henrietta Maria Spencer-Churchill (1847–1927), daughter of John Spencer-Churchill, 7th Duke of Marlborough, aunt of Sir Winston Churchill. They had four daughters and five sons:
- Ivor Churchill Guest (infra);
- Henry Guest (1874–1957);
- Frederick Edward Guest (infra);
- Lionel Guest (1880–1935), was a co-founder of the Ritz-Carlton Montreal. He married Flora Bigelow Dodge, daughter of John Bigelow, in 1905. Flora was the author of Laughter and Tears (1926) and the mother, by her first marriage, of John Bigelow Dodge;
- Oscar Guest (1888–1958).
Ivor Churchill Guest, 1st Viscount Wimborne
Frederick Edward Guest
- Raymond Richard Guest (1907–1991)
- Winston Frederick Churchill Guest, (1906–1982) a polo player who married 1) Helena Woolworth McCann (div. 1934), granddaughter of F. W. Woolworth, 2) Lucy Douglas Cochrane (C. Z. Guest).
- Winston F. Guest had two sons with Helena Woolworth McCann:
- Winston Alexander Guest Jr.
- Frederick E. Guest II
Winston F. Guest had a son and a daughter with Lucille Douglas Cochrane:
- Alexander Michael Douglas Dudley Guest
- Cornelia Guest
- Diana Guest (1909–1994). Married 1) Marc Sevastopoulo, 2) Count Jean de Gaillard de la Valdène, 3) Allen Manning.
- She had two children with Count Jean de la Valdène:
- Guy Winston de Gaillard de la Valdène
- Lorraine Aimee de Gaillard de la Valdène
- Price (2007)
- Davies (2007)
- Owen (1977)
- Owen (1977) pp13-15
- John (2004)
- Owen (1977) pp29-30
- Owen (1977) p.16
- Who Was Who 1897-2006 (2007) "Wimborne, Ivor Bertie Guest", A&C Black
- Who Was Who 1897-2006 (2007) "Guest, Lt-Col Hon. (Christian) Henry (Charles)", A&C Black
- Who Was Who 1897-2006 (2007) "Guest, Hon. Lionel (George William)", A&C Black
- Who Was Who 1897-2006 (2007) "Dodge, John Bigelow", A&C Black
- Who Was Who 1897-2006 (2007) "Guest, Hon. Oscar (Montague)", A&C Black
- Boyce (2007)
- Searle (2006)
- Boyce, G. D. (2007) "Guest, Ivor Churchill, first Viscount Wimborne (1873–1939)", Oxford Dictionary of National Biography, Oxford University Press, online edn, accessed 3 September 2007 (subscription or UK public library membership required)
- Davies, P. M. (2007). "Sir Josiah John Guest, Bart., M.P. Provincial Grand Master of South Wales (1836-48)". Province of South Wales Eastern Division Feature. United Grand Lodge of Antient, Free and Accepted Masons of England. Archived from the original on 2007-09-28. Retrieved 2007-08-26.
- John, A. V. (2004) "Guest, Sir (Josiah) John, first baronet (1785–1852)", Oxford Dictionary of National Biography, Oxford University Press, accessed 25 August 2007 (subscription or UK public library membership required)
- Jones, E (1987). A History of GKN Volume 1: Innovation and Enterprise 1759-1918. London: Macmillan. ISBN 0333345940.
- Owen, J. A. (1977). The History of the Dowlais Iron Works 1759-1970. Newport: Starling Press. ISBN 0-903434-27-X.
- Price, W. W. (2007). "Josiah John Guest". Welsh Biography Online. National Library of Wales. Retrieved 2007-08-26.
- Searle, G. R. (2006) "Guest, Frederick Edward (1875–1937)", Oxford Dictionary of National Biography, Oxford University Press, online edn, accessed 3 September 2007 (subscription or UK public library membership required)
- Vaughan, C. Maxwell (1975). Pioneers of Welsh Steel: Dowlais to Llanwern. Newport: Starling Press. ISBN 0903434083.