Mrs Ruth Walker, born late 1700's Derbyshire. Searching for her maiden name.

[..claire..]

Remember in the 1841 census ages of people over 15 were supposedly rounded down to the nearest multiple of 5.

Claire

[element4]

Martha bp 25 Nov 1821
Sarah bp 7 Nov 1819
William bp 14 Sept. 1823
Adam 28 Dec 1828
Mary Ann bp 12 Mar 1826
Joseph bp 22 Mar 1818

Claire

Thanks.  Does it give the name of the church where they were baptised?  Especially the 1819 baptism would likely be in the same church where the parents were married in 1817, and be a strong indicator that I have the right Ruth.

[..claire..]

The transcript doesn't say, but I am trying to find it. I did come across this site that you may find useful
 
www.belper-research.com

Claire

[shirl100]

Hi

There is a marriage in Duffield in 1817

John Walker married Ruth Waterfall 6 July 1817

He a bachelor she a spinster.

Claire

On familysearch ( Derbyshire Parish registers - you need to register (free) to see the actual PRs ) the marriage ( by banns) entry shows 2 witnesses, Sarah Waterfall and James Lowther ? ( his name appears on quite a lot of the records so maybe a church clerk etc). John and Ruth are shown of this parish (Duffield) and John, Ruth and Sarah all made a mark.

The entries on familysearch for the childrens baptisms come from Bishops Transcripts and they are shown as Church of England, Belper Chapelry in the parish of Duffield

Shirl

[trish1120]

JOHN WALKER Waterfall Christened 14 January 1816, Belper, Derbyshire
Mother RUTH Waterfall
(Source Familysearch.Org)

So an Child born before this Marriage as found earlier by Claire.

Looks like it confirms Ruth was nee Waterfall

[..claire..]

Both good finds 

The church could possibly be St Alkmunds

Claire