A bit of a long shot!
There is a marriage for a Lewis Morse to a Sarah Jane Williams Dec Q 1883 Swansea.
They had a child Susanna Morse Dec Q 1885 so I am presuming that all these records are collated somewhere into the BMD lists and during the transcriptions from list to list Wheeler was changed to Williams, although not sure about William Robert Morse Mar 1877.
On FreeBMD the images are recent printed lists and not originals.
There is a marriage for a Lewis Morse to a Sarah Jane Williams Dec Q 1883 Swansea.
They had a child Susanna Morse Dec Q 1885 so I am presuming that all these records are collated somewhere into the BMD lists and during the transcriptions from list to list Wheeler was changed to Williams, although not sure about William Robert Morse Mar 1877.
On FreeBMD the images are recent printed lists and not originals.