Hi Kelly,
Yes I do have Gage in my tree, as you see on my webpage.
William Gage b. 1805 in Bloomsbury married Mary Broderick.
They had the following children: William, Jane, Charlotte, so there is a Charlotte connection but not at the right time-frame.
I'm not too sure about William's parentage but I guess they could be connected with yours, perhaps siblings?
I have been thinking that William Gage, baptised 1805 at Marylebone may be 'mine', in which case there is a Charlotte Margaret Gage baptised 1799 to the same parents ... a bit of conjecture at the moment though.
do you know where Charlotte was born/baptised? have you found her on any census?
Though I'm happy to chat my PM - it's generally best to post on the boards I think, you just never know who else might see it and be connected 
I am a web designer so my tree website is done from scratch. I didn't like the commercial products on offer so did it myself.
If I find out any more on the Gage family I'll let you know.
Jonathan
Thank you for getting back to me. I have found a Charlotte Margaret Gage on a census (having trouble remembering which one now though!) She was born 15 Feb 1799 and Christened in St Mary, St Marylebone Road, Saint Marylebone, London
So am I right in thinking my Charlotte could be sister to your William??