1918 RMLI research help

[jagdtiger]

is there any way that i can find further information on the person stated below - like service records, ships served on, exact cause of death?

Private JOHN CARROLL

PLY/18749, 1st R.M. Bn. R.N. Div., Royal Marine Light Infantry

age 18

died of wounds on 03 September 1918

i have tried the The National Archives(Kew) website and have turned up nothing... not even a medal card. the above information is all that i know of his millitary sevice and was found on the cwgc website

any help will be much appreciated

regards jon