The Joel family of England was headed by three brothers, Jack, Woolf and Solomon, who made a fortune in diamond and gold mining in South Africa. Their father was Joel Joel (1836–1893) and their mother Catherine "Kate" Joel née Isaacs (1840–1917), a sister of Barnett Isaacs, later to be known as Barney Barnato.
The Joel brothers
- Jack Barnato Joel (1862–1940), mining magnate, Chairman of Johannesburg Consolidated Investment Company Ltd (from 1931), Thoroughbred racehorse owner/breeder married to Olive Coulson Sopwith (d. 1937), daughter of Thomas Sopwith.
- Woolf Barnato Joel (1863–1898), South African mining magnate
- Solomon Barnato Joel (1865–1931), mining, brewing and railway magnate
Other prominent members of the Joel family include:
- Jim Joel (1895–1992), businessman, philanthropist, Thoroughbred racehorse owner/breeder
- Stanhope Henry Joel (1903–1973), businessman, Thoroughbred racehorse owner/breeder
- Dudley Joel (1904–1941), businessman, politician, WWII naval officer
Joel Joel (1836/1837 - 7 Apr 1893), son of Isaac Joel (c1800-1847) and Rebecca Solomon (c1800-1842). Joel Joel married Catherine Isaacs (1840, Spitalfields - 8 Nov 1917). She was the daughter of Isaac Isaacs and Leah Harris
- Jack Barnato Joel (29 Sep 1862 - 13 Nov 1940) x Edith Richards (3 children) xx Olive Coulson Sopwith (d. 1937)
- Harry Joel (1894–1992)
- Woolf Joel (1863-March 1898) (shot dead in Johannesburg office by blackmailer Baron Kurt von Veltheim whose real name was Karl Frederic Moritz Kurtze, and was born at Allhausen, Brunswick, on 4 December 1857)
- Geoffrey (10 March 1896 London - 22 March 1957 Johannesburg) x Edith - maiden name unknown.
- Solomon Barnato Joel (23 May 1865 - 22 May 1931) married Ellen "Nellie" Ridley (-14 August 1919) (5 children) xx Phoebe Carlow
- Doris Irene Kathleen d. 14 August 1919 x Arthur Walter
- Woolf d.13 November 1923, named after Uncle Woolf Joel
- Stanhope Henry b.8 February 1903 at 2 Gt. Stanhope St, Mayfair x Gladys MacFadden
- Solna, married Harry Thomson Jones
- Dudley Jack Barnato (26 April 1904 - 26 May 1941) (drowned at sea) - Conservative Party Member of Parliament x Esme Ritchie
- Eileen Daphne Solvia (20 March 1907 - 30 Jan 1974) x John Rogerson
- "Jack Barnato Joel (1862-1940)". Retrieved 2011-02-06. "Mr J B Joel, son of an East-end publican, went to South Africa as a young man and became a millionaire there. He returned to England and supervised his vast financial interests in the City. His business covered mines, breweries, collieries in South Africa and gold and diamonds. Jack Joel was extremely successful with his racing and breeding interests and his horses won almost every important contest in the Racing Calendar. He was Champion Owner on 3 occasions."
- Edith is shown on the The National Archives of the UK, in the UK Incoming Passenger Lists, 1878-1960. Both Geoffrey and Edith arrived in Southhampton, England, on the Athalone Castle ship on the 21 May 1954.