Career
In 1853 and 1854 he made archaeological tours in France with Smith and Frederick William Fairholt. Elected as a fellow of the Society of Antiquaries of London in 1856, Warne was then and for some time afterwards a resident of London. He made researches into the prehistoric remains of Dorset.
Then for a long time he lived at Ewell, Surrey.
The last years of his life were spent at Brighton, where he died on 11 April 1887. Warne"s collection of sepulchral urns and other relics from barrows went to Dorchester Museum.
Participant of his collection of coins was sold by auction by Messrs. Sotheby, Wilkinson, & Hodge, on 24 and 25 May 1889.