Hi Jack,
I really appreciate the help you are giving me. I have tried to scan some documents tonight but SP is playing up and giving me error messages and our scanner refuses to work(printers working tho!!) So I'm getting a wee bit crabbit!!
I'm so glad you found the 1841 census--I've looked for it for 2 years

I tried every form of Bruce/Brice/Brace etc etc. On one census I found them as Bence!!! You've definitely found the right ones!!
I really thought I had them all sussed out and now you've thrown a spanner in the works and they may not be who we thought they were after all
Re William Lyon/Catherine:
IGI Batch M119754 William Bruce married Catherine Bruce Glasgow 8th December 1841
DC for Catherine Bruce: Died September 29th 1886 19 Macadams Lane, Glasgow.
Widow of first: James McAulay Harbour Porter
Second : William Bruce Engine Fitter
Father:?????Crossan Freestone Quarryman
Mother:Catherine Crossan MS unknown
Cause: Senile debility 2 yrs
Signed: James McAulay son
(This certificate is on my PC as a tif image--readable but don't know about exporting it.)
The family on the 1861 census are obviously this William and Catherine + the 2 sons she had to her first husband James McAulay.
On this William's DC,(died 13th December 1861) he was the son of William Bruce and Lillias Scott and was born, as you say, in October 1806.
On the DC of the other William, (d. 11th November 1860) he was the son of William Scott Bruce-wright, and Mary Lyon.
On the censuses, Mary Lyon gives 'widow' and we thought it was because maybe she didn't want everyone to know that her husband had left her for another woman!!! Saving face, so to speak!!
The only discrepancy there is that she gives him as a joiner............?? I understand what you mean about the millwright thing............so which William is which

Are they one and the same and Mary told lies??Or are they 2 different people??
Who is the William who signed the DC as 'son' to WB in 1861??
Where do Lillias Scott and William Bruce born in 1777 fit in??
Who really is James dad (b 1863 or????)
My cousin, Liz, has become interested and remembers stories that her Mum (my dad's sister) used to tell about Grandma Mary. She was very prim and proper--(but had children out of wedlock)!! And there was a big mystery over William,s death(in 1860)--some tales went round that she'd poisoned him and others that he wasn't dead

It was a taboo subject to talk of him in their house while the children were growing up!
Intriguing or what???
It appears that the only definite thing now is that my dad was born the next youngest in a family of 10 to James Bruce and Annie Hedderwick Robertson 4thApril 1905.
Think I'd better start again................!!!!!!!
Just kidding! The Robertsons have been slightly easier---but still found skeletons!!!
Is this why we do it? Just for the fun of it???
I expect you'll have a headache when you've read all this!! I know I've got one now!
Thanks a million Take care, Sheilah xx