Hi,
Is this him in 1881? There are only two Benjamin williams listed as being a visitor in Glamorgan ( the other one is too old, and not born in Briton Ferry)
Benjamin Williams abt 1865 Briton Ferry, Glamorgan, Wales Visitor Llanrhidian Higher
5 Hendy Row
Occupation: Striker For Blacksmith
Source information: RG11/5368
Registration district: Swansea
Sub-registration district: Gower Eastern
ED, institution, or vessel: 12
Folio: 64
Page: 10
The above is listed as vistor ( with the Elias family who are working in Tinplates)
Is his wife's name Catherine? who was in born in Essex (age 25 in 1891). You didn't really give enough info for people to work on, kids names, wife's name etc . But there is this family below with a Benjamin who was born in Briton Ferry, around the age that you have given, give or take three years .
There is a Benjamin williams living in the Neath reg district in 1891 , working in the tin plates, wife Catherine , three kids
Richard T (age 3), the other two are Jane (age 2) and John (age 1). Jane and john are on the next page.
Source information: RG12/4466
Registration district: Neath
Sub registration district: Cadoxton
ED, institution, or vessel: 9
Folio: 41 )
1901 census below. I found those above same names:
Benjamin Williams 36 Glamorgan born Briton Ferry, Glamorgan Blaenhonddan Doubler In Tin Plate Works
Catherine Williams 36 Born Essex ,Glamorgan Blaenhonddan
Richard Williams 13 Glamorgan Neath Glamorgan Blaenhonddan Labourer In Tinplate Works
John Williams 11 Glamorgan Neath, Glamorgan Blaenhonddan
Jane Williams 12 Glamorgan Neath ,Glamorgan Blaenhonddan
( I can't view the 1901 image, I have no credits for the gov site)
Is this the family that you are looking for in 1891 and 1901 , or am I totally way off track with this above family?
Best Wishes