Not sure if connected to your Winnie, there is this electrol. Also in household at no 4 is Winifred Basham & Beatrice Holland who looks like she was nee Basham.
Electrol
Name William David Radbone (wife is Annie F)
Residence Year 1932-1933
Street Address Vincent Street 4 (Swansea)
Residence Place Glamorgan, Wales
There is a marriage in 1904 Swansea - Beatrice Basham to Frederick Holland
Also this..which may not connect
Name Beatrice Maud Holland Basham
Topic Human Interest
Residence Date 29 Jan 1937
Residence Place Swansea, West Glamorgan, Wales
Publication Date 29 Jan 1937
Publication Place Swansea, West Glamorgan, Wales
Newspaper Title South Wales Evening Post
Cas