Gravestone translation required

[rossendalerose]

Hi -I'm doing a Hughes family tree for a friend and have been sent a gravestone inscription.  I can understand most of it  (lived on Anglesey for 3 years and learnt a bit of Welsh).  Just want a Welsh speaker to confirm that Jennie Hughes was buried with her baby in 1936:

(on gravestone is Janet Hughes, age 75 died 1935 and Robert Hughes her husband in 1936) +

nain a thaid hoff. Hefyd eu merch ynghyfraith Jennie Hughes a'i baban bach bu farw Mai 5 1936
mam annwyl ei phlant colled fawr oedd cdli mam hefyd ei gwr Hugh Hughes (died 1980 age 83).


Many thanks in advance Rozalia

[Fisherman]

Hi
My attempt

Beloved grandparents. Also their daughter Jennie Hughes and her little baby who died May 5 1936
The beloved mother of her children
A great loss losing a mother mother
Also her husband Hugh Hughes (died 1980 age 83).

I think cdli should be colli

Fisherman

[rossendalerose]

Thanks - that's what I thought.  Sad - I'm assuming she died in childbirth. Also presuming that the child was stillborn as it hasn't been given a name.
Thanks again Rozalia

[Fisherman]

Certainly looks that way
Happy to help

Fisherman

[pinot]

Small correction: Jennie was their daughter in law (merch yng nghyfraith).

[Fisherman]

Pinot,

Thanks for the correction.
How did I miss that? 

Fisherman