Wow, so much information - where do I start!!!
I have had a reply from the Clockmakers Company. They have kindley given my some information about Thomas. They have told me that there is a Thomas who was at 119 Oxford Street in 1826, 85 Oxford Street between 1829-1831, 387 1/2 in 1835, no number Oxford Street from 1840, and then at 129 Oxford Street in 1847. They have sugested that after this date, he may of either stoped trading, entered into a partnership, or moved out of London - I think one of the postes above answers this question!
So, it looks as if there could have been 8 children between Thomas & Elizabeth. I will have to get down to the Westminster Archives later in the year and trace that one up. If you were living in Marylebone would you take your children to be christend in Westminster? (Sorry if that is a stupid question - I have only ever ventured into the capital on a couple of occasions, and do not know the layout that well)
I see that the 1851 census has Thomas living in Winchester! Thank you so much for finding that, and the death as well (an aplication for that will be quickley placed with the GRO's website as soon as I finish writing this reply!!). So me must have moved down to Winchester, and then his family followed. It also looks as if he may not be working for himself anymore - I think a 'Journeyman' was somebody who travelled for work - please correct me if I am wrong!
With Charles Ashown - I persume it is Stratford in London. Coming form the Midlands, when I first saw the post, I automatically thought of Straford-upon-Avon! I will certainly look that one up, and see if I can find out who his wife was, and if it matches with the names provided from the IGI.
Thank all so much for your great help,
Tippin