World War One: Jamie Owen on grandfather's dockyard role

BBC Wales Today presenter Jamie Owen has been researching the role his grandfather played in World War One.

Thomas Edward Owen - "Pop" or Tommy - was born in 1883 and worked in the Royal Dockyard in Pembroke Dock as an engine fitter.

When the war came, his work turned to helping to build submarines and warships.

Jamie never knew him but there is some family home movie of Tommy in the 1960s.