Is this your chap?
1901 Barnstaple Devon
RG 13/2144 folio 56 page 13
6 Barbican Road
William Delemore, head, 34, railway engine driver, Chester Cheshire
Fanny, wife, 34, Chester Cheshire
William, son, 11, Chester Cheshire
Thomas G., son, 6, Birkenhead Lancashire
John S., son, 2, Exeter Devon
Leonard, son, 6mo, Exeter Devon
This family obviously moved around a bit, so "next stop Pontypridd" is not out of the question.