There is personal info about Sgt John Skelton here:
https://timenote.info/en/John-Skelton-00.00.1923
It includes a newspaper clipping that his body was found "
in a field by a French peasant" and is buried in Brussels.
I tend to go along with Rolland's assumption that southern Belgium (where Mons is) or border area FR/BE is likely, where they all speak French after all.
Regards,
Leendert