Pte Greig is buried in a War Cemetery in India. The exact circumstances of his death are not known at this stage by this archive. At the time of his death No 3 Commando were based in Worthing, UK.
His name is not on the Westminster Abbey Commando Roll of Honour, however his secondary unit is shown as No 3 Commando on the Commonwealth War Graves Commission database.
It should be noted that 3 Commando Brigade (Nos 42RM, 44RM, 1, and 5 Commandos) were in India at this time.