There are a couple of newspaper advertisements which mention Mr C. STEPHENSON, Estate Office, Castle Howard, York eg:
Saturday, July 29, 1882
Publication: York Herald
and
Tuesday, Apr. 14, 1885
Publication: Leeds Mercury
For interest, there is also a report of an outbreak of typhoid fever in the pigs on the premises of Mr Stephenson of Terrington, Castle Howard.
Monday, June 2, 1879
Publication: Sheffield Daily Telegraph