my grandfather ww2 rasc

[alan]

hello i am looking for info oin my grand father who served during ww2
he was killed during a convoy near the southcoast of england near romford as far as i know
my mother who was only three at the time never knew him sadly she died many years ago and my grandmother only died last year i have a picture of him and a certificate of his service from the king which arrived after his death and which my mother gave me
my question is how would i go about finding about his service in the army if there are any pics of his regiment any body who knew him and could provide pics of him as said he was only 25 at the time of his death and not much exists of him today i know its a long shot but its worth asking as my grans sisters husband was killed at dunkirk and her uncle was killed during the 14-18 war
his deatails are below
you can contact me at
[e-mail]
thank you
alan m

Driver PATRICK JAMES STANLEY
14659299, Royal Army Service Corps
who died age 25
on 30 July 1944
Son of James and Alice Stanley, of Dublin; husband of Jane Stanley, of Dublin.

[katrinameyrick1959]

Try looking at R A S C war diaries they sometimes give you the names of casualties