From CWGC

Rank: Private
Service No: 22678
Date of Death: 21/07/1916
Age: 22
Regiment/Service: Border Regiment 1st Bn. formerly (1681) East Surrey Regiment
Grave Reference: 8. 116.
Cemetery: MITCHAM (CHURCH ROAD) BURIAL GROUND
Additional Information: Son of George Thomas and Fanny Dann, of 16, Walpole Rd., Collier’s Wood, Merton, London.

Video of the research by Colliers Wood resident Diane Holmes, who talks about Private Dann at 4 minutes 54 seconds.