Hi  "Hat of the Cat"  and  "JenB"  for your prompt and most informative information and references. .   I have been searching my Charleton forebears from Elsdon (farms at East Toddles, West Toddles, Wiskershiel, Witless,  North Riding and Landshot)  for over 35 years, but only recently found the reference to  Wark Woods.  I recall even searching it as Warkwoods, but only found one reference to a plant at Warkwoods Estate, Newcastle Great Park.   Obviously I was not searching the applicable Maps, but, living down under,  I am unfamiliar with the range of historical maps to search. Therefore, all your links are much appreciated.
While we spell the name 'Charleton'  with the 'e', I certainly see references to the spelling 'Charlton.'   I am unsure  when and why the spelling changed.  One anecdotal story told two me was that the 'e' was included to indicate that the family was 'C of E'. Who knows?  The list of other Charlton family names provides more opportunities to explore, especially  for the  grandfather of Richard  Charleton,  [my 3x Great Grandfather] ,baptised & May 1769, son of Thomas Charleton. This information kindly provided by both of you has provided much valuable additions to my on-going research.
Thanks, Stephen Schollum, Cambridge, NZ