Hello

me again

Some time ago, I posted for some help on linking Florrie Davies (shown on 1901 and 1911 census with Thomas & Margaret (nee Nash) JENKINS & Family of Pentrebach. First she is shown as a visitor, then a Niece) I still haven't been able to find how she is linked, so thought I'd look at the NASH line - to see if there is a link there ....
I'm a little bit stuck trying to find the Mother - Mary Ann Nash (1813/16), and her Daughter (yep

) Mary Ann Nash (1837) on the 1841 census. Mary had another Daughter in 1841 - called Sarah Nash, in Merthyr (although I can't find her Birth, only a Sarah in 1843 in Swansea) ..... I have, who I believe to be the Father, JOHN NASH on the 1841 census, with their Son (ARGH!! - John Nash) living in High Street, Merthyr, They are lodging with Maryan & Maryan Watkins. I first thought this was too much of a coincidence, but they are clearly shown as Watkins on the census originals .. shame !
The family are: John (1816), Mary/Mary Ann (1813), Mary Ann (1837), John (1840), Sarah (1841), Elizabeth (1844) & Margaret (1850)
I have John (the Father) on the 1841, 1861-1891 (* not on the 1851) ...... I have Mary on the 1851-1881 census, but can;t find her or the first children on the 1841 .... grrr
HELP PLEASE ??