Looking for help to locate yet another Samuel Williams on the 1891C, this one though born in Chester

1901 Gelligaer census info: 5 Station Terrace
Samuel Williams, HD, 48, Coal Tipper, b. Chester, Chestershire.
Martha, WI, 60, b. Newport, Pembroke.
David John Williams, g/son, 14, Coal Hewer, b. Cwmfelin, Glam
Thanks
Roy