Llythyr a anfonwyd gan George Rice Trevor (Barwn Dinefwr) at William Chambers. Yn y llythyr, mae'n canmol Chambers am y trefniadau a wnaeth ar noson yr ymosodiadau yn yr Hendy a Phontarddulais.

Disgrifiad gan Evan D. Jones:

'He had just heard from Mr. Nevill of the part he took in the occurrences of the past night at Hendy and between there and Pontardulais. The arrangement made by him reflected great credit on him, and the writer was much pleased with as well as obliged to him for his zeal and activity on that occasion'.

Ffynhonnell: Evan D. Jones, 'A File of "Rebecca" Papers', Trafodion Cymdeithas Efrydu Hynafiaeth a Natur yn Sir Gaerfyrddin, Cyf. I (3 & 4), 1943 & 1944, 33.