James Colvill (ca. 1746 - 1822) established his nursery ca. 1783. It was called Colvill & Son after 1807. His son James junior (1777 - January 25, 1832) continued the business. Colvill & Son specialized in exotic plants.
[From The Gardeners Magazine
, May 1832, p. 256:] Died, January 25, deeply lamented by his Family and a numerous circle of friends, Mr. James Colvill, nurseryman of the King's Road, Chelsea, in his 55th year.
[From History of European Botanical Discoveries in China
, 1898, by Emil Bretschneider, p. 218:] Colvill, James, (Sometimes quoted: Messrs Colvill), nurseryman, Chelsea, King's Road. Colvill introduced and cultivated many interesting exotic plants, between 1795 and 1825...Rosa involucrata
Roxb. ...Rosa indica
From The Old Rose Adventurer
, by Brent C. Dickerson, p. 184:] Colville, the influential British nursery run by Colville father and son, ceased operation in 1834.