I see that the dreaded Rootsweb
http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=Search&includedb=&lang=en&ti=&surname=Stuart&stype=Exact&given=Stonehouse&bplace=&byear=&brange=0&dplace=&dyear=&drange=0&mplace=&myear=&mrange=0&father=&mother=&spouse=&skipdb=&period=All&submit.x=Searchhas a marriage - same as indicated by Monica, there are 11 entries (if you search for Stonehouse Stewart - you'll come up with another entry on the site - indicates same wife but has no children)- one includes this:
"Monumental Inscription Harwich
In the memory of Stonehouse Stuart who departed this life on the 2nd December 1853 in the 98th year of his life and Elizabeth his wife who departed this life on 30th November 1843 aged 75 years"
Also, a search of Google Books brings up the following snippet:
The Smugglers' Century: The Story of Smuggling on the Essex Coast, 1730-1830 - Page 67
by Hervey Benham, Essex Record Office - Smuggling - 212 pages
Five years earlier Capt Smith of the Leopard, also of Harwich, gave his reason
for employing a local branch pilot, Stonehouse Stewart, at 6s a day. ..."
That's all my input I'm afraid. Good luck with your searching. Regards, Steve :O)
Off to bed with a wife and a good book - or should that be a good wife and a book I think :O) :O)........