John Joseph Coulston
- Born 13 September 1895 or 1897, Riverton, Southland, New Zealand
- Died 1938
- Last rank Private
- Service number 15697
- Served In B Company, 15th Reinforcements, Wellington Infantry Battalion, New Zealand Expeditionary Force
- Next of Kin M. Coulston (father), Colac Bay, Southland
- Pre-war occupation Mill Hand, O’Connor & Bullians
- ReligionPresbyterian
- Enlisted1 April 1916, Trentham
- Embarkationaboard HMNZT 59 Waitemata, or Ulimaroa, departed 26 July 1916, disembarked Egypt, 3 October 1916.
- Theatres of operationWestern European 1916-1917-1918
- Periods of service148 days in New Zealand, two years and 29 days overseas in Western Europe. Total service of three years and 73 days.
- Returned to New Zealandaboard Arawa, 15 May 1919
- Discharged12 June 1919 on termination of period of engagement
- AwardedBritish War Medal and Victory Medal