This could be useful for anyone trying to trace Thomas Selborne or William Thomas
"A LINK WITH THE PRINCE IMPERIAL. THE ZULU WAR RECALLED. The death occurred on June 12th in the Yarri Goldfeild West Australia , of Mr. Thomas Selborne, aged 64 He saw service in the Zulu War of 1879, having enlisted in the 17th Lancers under the name of William Thomas. On June 2nd the Prince Imperial of France, who was attached to the staff of Lord Chelmsfords force, went out with a small escort of troopers to examine a proposed line of march from the Itilezi Hill to the site of the camp beyond. The escort was surprised by Zulus the tall tambuki grass and scattered, the Prince being seen to fall. Next day his body was found in the donga. covered with assagi wounds, and was brought in by a party of which was one. Selborne was decorated for bravery, and at the close of the war he went with his regiment to India. Afterwards he engaged in mining in Western Australia for thirty years."
Kentish Independent - Friday 11 August 1922