Pam.......
The reason I missed the following births, is because , mum was CATH Williams, on the baptisms of Martha , Samuel and Elizabeth......She is CATHERINE on these

Mary Jones , daughter of Thomas Jones , farmer, and Catherine Williams.
Baptised September 29th 1805. Abode, Saltney.
Catherine Jones , daughter of Thomas Jones, farmer and Catherine Williams.
Baptised September 27th 1807. Abode , Saltney.
Thomas Jones , son of Thomas Jones , farmer and Catherine Williams.
Born September 7th 1809, baptised October 1st 1809. Abode Saltney
Sarah Jones , daughter of Thomas Jones , farmer and Catherine Williams
Born October 17th 1811, baptised November 20th 1811. Abode Saltney
HANNAH JONES , daughter of Thomas Jones, farmer and Catherine Williams.
Born October 21st 1813, baptised December 3rd 1813. Abode Saltney
William Jones , son of Thomas Jones , farmer and Catherine Williams.
Born March 5th 1816, baptised April 19th 1816. Abode Saltney.
I cannot find a Eliza Jones, with the same parentage. Perhaps she was a niece?..........
Re ages in 1841. For some stupid reason, ages of any one of over 15 years old was rounded up or down by +/- 5 years and I have found some times more.
People could not read and write, did not celebrate birthdays, and did not read newspapers. Apart from Christmas and Easter. every day was the same, and no way to mark the passage of time
Of course I do not mind you asking, It makes buying the Parish Registers worth while, and keeps my brain cells working......and you have found a new connection with Paula.....Super !! I am going to add to my library , this week , possibly marriages and burials 1821-1830.
In the meanwhile, hope this helps.
Regards
Jeannie