Sorry, I'm late replying, I'm still getting used to how Rootschat works.
Thank you for all your replies.
He did marry Rebecca Waitt in November 1825 in Braunston. Over the following 18 years, they lived in London, Edinburgh, Glasgow and finally Liverpool, so it is difficult to work out where he comes from and if he continued as a tea dealer. Though in 1841 he gives his occupation as a carter so maybe he was.
Monica mentioned 1841 census, he puts a no in the box under, (If born in Scotland state whether in the county or otherwise. I've taken this as no he wasn't born in Lanarkshire, am I wrong?
From 1850 until his death in 1886 he has numerous jobs but none relating to tea.
Annie, my thoughts were, having read of these young Scottish tea dealers going out into the world selling tea to make a living if these tea dealers did come from farms of a certain area it might give me an idea of where he came from. Unfortunately, the link to the article in the post is broken so I don't know its origin.
Thanks for the tea information, it all helps.
Andy