Source: March 1917 War Diary. Seconded to the 18th Battalion for training and Familiarization.
Was founding Lieutenant-Colonel of the 91st Battalion, C.E.F.
See also “They were like Tigers”: The History of the 91st Oversease Battalion, C.E.F. by Brendan Carey.
March 12, 1917 Diary Entry
|12||Battalion in front line as shown yesterday[vi]. LIEUT. Cols J.E. de Hertel and W.J. Green attached to Battalion for instruction. Weather very wet and misty being poor for observation. Enemy artillery active during morning on the rear of our line, but no material damage was done. Hun very quiet but busy cleaning and repairing his trenches which appear to be in bad condition. 5 o.r.s returned from hospital.|
March 1917, 20 Diary Entry
|20||Lt. Cols. J.E. de Hertel, W.J. Green and Major McCouley returned to England to rejoin their units. LIEUT. C.E. TUCK admitted to hospital. Routine.|