Hi
This is all I could find on the WFR site
J McLaughlin
Rank - Private
Index no of admission - T35130116
Service no - 651089
Ailment Gunshot wound neck
Admission and transferred date - 03/04/1918
Notes in Obs column - From 3rd Field Ambulance. To No.42 Ambulance Train
Religion - Roman Catholic
Regiment - RFA
Battalion - 165th Brigade
Other unit info - 31st Division
Archive Ref- "MH106/367
MH106/367 can be found at The National Archives in Kew, and contains First World War Representative Medical Records of Servicemen from No. 3 Casualty Clearing Station"
and....
James McLaughlin
24yrs
wounds
Particulars furnished - Old Charlton SE7 15/02/1919
Gunner
Service no - 651089
SWB - b120,048
WAR OFFICE REF - ra/3125
kings Regs - xvi