Hi Gail,
Born in 1860 he would’ve been too old for WW1.
As he married my grandmother in 1893 in Swansea, he’s unlikely to have been in the Boer War.
He says on his Marriage Certificate that his Father was ‘William Wilson (Deceased) Occupation:Mason’. I’ve never been able to find a William Wilson, Occupation: Mason with son William James Wilson on any of the earlier Censuses. As you say, very common names and seemingly impossible to pin down.
Romilly.