sentences:  Aged seventeen years old, Joicey began as a clerk at his uncle James' mining company "James Joicey & Co., Ltd," (founded in 1838, incorporated in 1886) which operated several collieries in the West Durham coalfield including pits at Beamish and Tanfield.Joicey became managing director in 1872.He purchased Lord Durham's Lambton collieries in 1896 and the Hetton collieries in 1911.