Mary Johns born in Pembroke, Wales

[bellysally]

I have been searching for information for my great grandmother Mary Johns. I have her marriage and death certificates and the information I have from these two certs. are - born about 1846 in Pembroke, Wales; father William Johns occupation farmer/farm bailiff; mother Martha James; married Walter William Prime at St Mary of Lambeth, Surrey, London, on 27/8/1867 at age 21. A year later Mary and Walter immigrated to Christchurch, NZ.
I have a lot of Walter William Prime's family but nothing of Mary Johns.
I have been searching records in Wales for Mary and her parents and siblings and came across a census for 1851 for Mary age 5, father William (born about 1805 in Wiston, Pembrokeshire) and age 45 and his occupation farmer; Martha age 43 (born Puncheston, Wales) and siblings Thomas, Alfred, Anne and Margaret.
Have found no other census for Mary Johns and I also looked in the England census for her but couldn't find any that matched.
While searching for census for Mary's parents and have saved a 1841 and a 1861 census. In the 1841 census William and Martha are residing at Ambleston and William is age 36 and occ: Ag Lab, wife Martha is age 33 and their children - Elizabeth 10, Martha 6, John 5, William 4, Liza 2 and Anne 1. Their surname is John not Johns.
1861 census William and Martha are residing at Steynton and William is age 54 and occ: farmer, wife Martha is age 51 and sons Thomas 17 and Alfred 11. Their surname is also John.
That is about all I have - no death records for both William and Martha and there are so many William and Martha Johns/John I am not sure if I have the right family. The 3 census I saved all have Martha born in Puncheston but for William it is either born in Ruxbaxton, Wiston or Pembrokeshire.
Going by what I have for Mary Johns on both her marriage and death records, does anyone think maybe I have the correct parents and siblings for Mary?
Would also love to know where she lived when she got older and where was she when they did the 1861 census. Walter William Prime was living at 55 High St, Ware, England and was an apprentice butcher. I went through loads of pages from that census to see if I could see a Mary Johns but no.
 Thanking you and Regards,
   Judy

[Cas (stallc)]

There is a possible marriage of parents that would fit with 1841 census, age of first child.  I only have index, original would maybe hold more info.

Banns on familysearch http://search.findmypast.co.uk/record?id=gbprs%2fm%2f894022193%2f1
http://search.findmypast.co.uk/record?id=GBPRS/WAL/4232393/00039&parentid=GBPRS/M/894022193/1

Also marriage on freereg in Morvil, no additional info. https://www.freereg.org.uk/search_records/5818537be93790eb7f97b0d6?search_id=58eb35274325a626d203726b&ucf=fals

1830, 23rd December, William John, of Rudbaxton - Martha James, of Morvil,  in county Pembroke.

https://en.m.wikipedia.org/wiki/Morvil - states in the community of Puncheston.

Possible bapt of first born Elizabeth https://familysearch.org/ark:/61903/1:1:X1TH-688

Cas

[Cas (stallc)]

Checking GRO index it looks a good possible the 1841 census is correct family.

1841 John family for ref: https://familysearch.org/ark:/61903/1:1:M77W-B6G

JOHN, ANNE, Mmn James
GRO Reference: 1840  J Quarter in HAVERFORDWEST  Volume 26  Page 594

Seems there is another with maiden name James? Not finding a Liza.
JOHN, ELIZA   Mmn    JAMES 
GRO Reference: 1838  D Quarter in HAVERFORDWEST  Volume 26  Page 522

JOHN, ELIZA  Mmn   JAMES     
GRO Reference: 1838  D Quarter in HAVERFORDWEST  Volume 26  Page 524

https://www.gro.gov.uk/gro/content/certificates/indexes_search.asp Register and free to search.

Cas    

[Cas (stallc)]

1851 John family for ref: https://familysearch.org/ark:/61903/1:1:SGXM-2MP

Name:   Mother's Maiden Surname: not finding a 'Johns' in area only other John is Mary Ann 1847
JOHN, MARY    Mmn   JAMES     
GRO Reference: 1845  J Quarter in HAVERFORDWEST  Volume 26  Page 622

JOHN MARGARET    Mmn   JAMES     
GRO Reference: 1847  J Quarter in HAVERFORDWEST  Volume 26  Page 676
 
JOHN ALFRED      Mmn JAMES     
GRO Reference: 1850  J Quarter in HAVERFORDWEST  Volume 26  Page 718

Cas       

[Cas (stallc)]

1861 John family for ref: https://familysearch.org/ark:/61903/1:1:M78S-VM1

Gives Williams pob as Walton East

Old map gives them all in same area. http://www.lindisfarneprints.com/pembrokewiston-clarbeston-walton-eastrudbaxton--antique-map-1868-11715-p.asp

Cas

[Cas (stallc)]

Quite a few deaths in area for William/Martha 1861 -1871

1871 Possible for Martha, but no age or pob states from home on visit https://familysearch.org/ark:/61903/1:1:V5B8-KH7

Possibles for Mary working as Servant in area 1861, but unable to locate POB of Amblestone.

Hope some of this helps

Cas

[bellysally]

Thank you so much Cas. I will go and look at what you have sent me and get back to you later in the day (I live at the other end of the planet so you are probably asleep at the moment).
 Thank you again for all your help.
    Cheers, Judy

[Cas (stallc)]

Thank you so much Cas. I will go and look at what you have sent me and get back to you later in the day (I live at the other end of the planet so you are probably asleep at the moment).
 Thank you again for all your help.
    Cheers, Judy

Glad to help if can. Hope it is a small help, Welsh FH can be quite difficult at times  would not worry about the John/Johns surname in this period of time, for all the reasons am sure you know.

Best wishes Cas