[leigh kitchen]

Possibly, if James W:


First Name:
James W
Surname:
Powell
Regiments served with:
Unit Rank Service Number
London Regiment Private 47891
King's Own Yorkshire Light Infantry Private 58325
Archive Reference:
WO 372/16/62451
(Can be found at The National Archives in Kew, and contains First World War, War Office: Service Medal and Award Rolls Index)
Nominal index of all service personnel serving in a theatre of war 1914-1919

Or if John W:


First Name:
John
Surname:
Powell
Rank:
Private
Service Number:
860425
Regiment:
London Regiment
Archive Reference:
WO 372/16/61999
(Can be found at The National Archives in Kew, and contains First World War, War Office: Service Medal and Award Rolls Index)
Nominal index of all service personnel serving in a theatre of war 1914-1919