Apologies for not responding sooner and thanks for all your efforts, as trying to process all the information given thank you
My thought so far:
Marriage details found showing Elizabeth Day married1892 Swansea, Glamorgan to either Thomas Thomas or Harry Mcmanus Soden    
Louisa Julia Johns & Harry Mcmanus Soden found on same 1901 Census therefore, Elizabeth Day married Thomas Thomas in 1892  Swansea, Glamorgan 
 
Thomas Thomas  Sept qtr 1892 Swansea
Volume, 11a Page, 1247 
Elizabeth Day appears with same reference 
Louisa Julia Johns & Harry Mcmanus Soden named on same page and volume 
Elizabeth Thomas formerly Day Born abt 1856 in Abergavenny, Monmouthshire,  
Birth Record for Elizabeth Day found (birth quarter 2) birth year given as 1852 mother’s maiden name “Morgan” page 63 volume 11a (doubt about if this is my Elizabeth Day 
 
David Thomas   Born abt 1867   Llandeilo Carmarthenshire 
Marriage for David Thomas 1896 naming Thomas Thomas father as a Carpenter page 117 no 233 Monmouthshire 
Death detals for Thomas Thomas from 1906 Llandovery, Camarthenshire (quarter 3) Page 11a Volume 573   
 
Elizabeth’s birth year indicates she is not the mother of David and that Thomas David Thomas was married previously,  
 
99.9% sure Thomas Thomas first wife was Anne Jones who died 1874 and also the mother of David Thomas Born abt 1867 need to do a bit more work on the element to remove any doubt as David not listed  
"think this is a good 1871 for Thomas with first wife"  
Carmarthen, Llandeilo Fawr,  
Address: George & Dragon Inn  
Piece   5486, Folio   59, Page number   17  
  
Thomas Thomas 26   Head, Carpenter & Inn Keeper, Llangadock, Carmarthenshire  
Anne Thomas 24   Wife, Conwyl Cays Carmarthenshire (Conwyl Caio?)  
John Thomas   1   Son, Llandeilo  
Jane Thomas 21   Sister, dressmaker, Llangadock  
Margaret Evans 18   Servant  
 
 Any further assistance would be greatfully appreciated
Best Regards Ron