The date suggests that John Mackenzie died when the H.M.H.S. "Llandovery Castle" was sunk. However, unusually, the CWGC records do not give the name of ship, nor the panel on the Tower Hill memorial on which his name appears.
Nationality: United Kingdom
Rank: ABLE SEAMAN
Regiment/Service: Merchant Navy
Date of Death: 27/06/1918
Casualty Type: Commonwealth War Dead
Grave/Memorial Reference: Panel 36.
Memorial: TOWER HILL MEMORIAL