The story
The company was founded in early 1937 by two former de Havilland Technical School students and Old Etonians, the Hon. Andrew Dalrymple (born 1914), the son of Sir John Dalrymple, and Alexander Reginald Ward (born 1915), the son of Hon. Sir John Ward, whose father was the 1st Earl of Dudley. It established a small factory on the Chilton Lodge estate at Leverton, near Hungerford in Berkshire, from which location the firm's name was derived.
From Wikipedia’s article on Chilton Aircraft, shared under CC BY-SA 4.0.3