Hello again
i've just been looking at my Chirk records and I've found all three of Samuel's pre-1845 siblings' baptisms ~
They are listed as living at
Caegwinion/Caeaugwynion, located on the map here just to the south of the original Fron map point that I posted:
http://www.rootschat.com/links/0azy/ 3 May 1840 Mary Anne d/o Edward Jones (limeman) and Sarah
29 May 1841 Sarah d/o Edward Jones (labourer) and Sarah
13 Oct 1844 Robert s/o Edward Jones (labourer) and Sarah
In 1851, (WR has given the ref) Sarah is aged 41 and b. Market Drayton, Shropshire (but other censuses have her as b. Chirk) and Edward is 49, b. Chirk.
I've not checked for them on the 1841 but, given their ages, they might have been there with earlier children.
JL