Source: February 1916 War Diary taken on strength.
Family Search: When Lieutenant Douglas Walter Northcombe was born on 11 June 1890, in Chard, Somerset, England, his father, Walter Northcombe, was 30 and his mother, Mary Hodder, was 27. He married Edith Rosiland Darlington in 1915, in Hampstead, Camden, London, England, United Kingdom. He lived in Brighton, Sussex, England, United Kingdom, in 1911 and Winsham, Devon, England, United Kingdom, in 1930. In 1930, at the age of 40, his occupation is listed as superintendent, the West of England school for young people with little or no sight in Exeter, Devon, England, United Kingdom. He died on 15 August 1930, in Exeter, Devon, England, United Kingdom, at the age of 40, and was buried in Winsham, Devon, England, United Kingdom.
Lieutenant Douglas Northcombe of D Company led his party of bombers down Cowdray Trench to its junction with Contract Trench where he met the raiding party of the 21st Battalion. Earlier, his party had found a large supply of German stick grenades in a bombing post and where are armed and thrown into the dugouts along the sides of Cowdray Trench.
Antal, S., & Shackleton, K. (2006). Hill 70: A Canadian-Style Attack. InDuty nobly done: The official history of the Essex and Kent Scottish Regiment(1st ed., p. 235). Windsor, ON: Walkerville Pub.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 