Here are some links which may help in your Lot Pugh research:
There is a Carmarthenshire map available here:
http://www.carmarthenshirefhs.co.uk/Genuki LLandybie:
http://www.genuki.org.uk/big/wal/CMN/Llandybie/index.htmlGareth's Help pages:
http://home.clara.net/tirbach/HelpPagepearlsCarmarthen.html#Llandybie
I found this via the LDS site
http://www.familysearch.org/Eng/Search/frameset_search.asp Not sure if this is your own information or not? :
LOT PUGH Male
Event(s):
Birth:
Christening: 19 MAR 1820 Llandebie, Carmarthen, Wales
Death:
Burial:
Parents:
Father: DANIEL PUGH
Mother: ANNE
Husband
LOT PUGH Pedigree
Birth: 1820
Christening:
Marriage: About 1839 Margam, Glamorgan, Wales
Death:
Burial:
Wife MRS. MARY PUGH Pedigree
Birth: 1819
Christening:
Marriage: About 1839 Margam, Glamorgan, Wales
Death:
Burial:
Children: Unavailable Pedigrees of 11 children 1 available:
12. EVAN PUGH Pedigree
Male
Birth: About 1865 Margam, Glamorgan, Wales
& this one for his son born in 1848:
LOT PUGH
Male
Event(s):
Birth: 1848 Margam, Glamorgan, Wales
Parents:
Father: LOT PUGH Family
Mother: MARY
Your best bet may be to purchase Lot and Mary's marriage certificate in order to find out her maiden name for certain.
I am not sure if you have the 1881 census detail:
Dwelling: Pontrhydyfen
Census Place: Margam, Glamorgan, Wales
Source: FHL Film 1342285 PRO Ref RG11 Piece 5335 Folio 23 Page 3
Marr Age Sex Birthplace
Lot PUGH M 61 M Llanybier, Carmarthen, Wales
Rel: Head
Occ: Boot Maker
Mary PUGH M 62 F Margam, Glamorgan, Wales
Rel: Wife
Rosina PUGH U 18 F Margam, Glamorgan, Wales
Rel: Daur
Evan PUGH U 16 M Margam, Glamorgan, Wales
Rel: Son
Occ: Coal Miner
Dwelling: Hendy Road
Census Place: Llanedy, Carmarthen, Wales
Source: FHL Film 1342297 PRO Ref RG11 Piece 5378 Folio 132 Page 24
Marr Age Sex Birthplace
Lot PUGH M 32 M Pontrhydyfen, Glamorgan, Wales
Rel: Head
Occ: Tinman In Tinworks
Mary PUGH M 25 F Llangadock, Carmarthen, Wales
Rel: Wife
Occ: Tinman Wife
I don't know where these ones fit in I am assuming this is GWILYM:
Dwelling: Greenpark Street
Census Place: Aberavon, Glamorgan, Wales
Source: FHL Film 1342285 PRO Ref RG11 Piece 5335 Folio 84 Page 44
Marr Age Sex Birthplace
Gwilin PUGH M 28 M Pontrhydfen, Glamorgan, Wales
Rel: Head
Occ: Labourer
Anne PUGH M 26 F Pontrhydfen, Glamorgan, Wales
Rel: Wife
David PUGH 7 M Pontrhydfen, Glamorgan, Wales
Rel: Son
Occ: At Home
Lot PUGH 5 M Pontrhydfen, Glamorgan, Wales
Rel: Son
Occ: At Home