A de Chammorel wrote letter 4262 to Sloane, regarding a number of books that Sloane sent him. The only de Chammorel of this time that could be indentified was a reference to a Mons. Chammorel, Secretary to the French Embassy.
de Chammorel to Hans Sloane, 1731-04-28, Sloane MS 4051, f. 226, British Library, London.
A List of Servants of the following employees, The National Archives, [http://discovery.nationalarchives.gov.uk/details/r/C7763333, accessed 21/08/17]
Relationship to Sloane: Virtual International Authority File: