The papers consist of a collection of letters written to and from various individuals. From Nicholas Bennett to Ceiriog, Idris Fychan and Robert Griffith which contain much information on old Welsh verses and harpists etc. From J.H. Davies, Sir Owen Edwards and Gwilym Cowlyd to Robert Griffith. From Robert Griffith to Mrs Ceiriog Hughes, Nicholas Bennett and Mr Robert Davies. From R. Gutyn Ebrill and Ceiriog etc. to others.
The three volumes of autobiography are full of comments about the people of Llanrwst, Denbighshire and the local country industries. Also, they provide details of the life of Robert Griffith in Manchester and his troubles as a writer and Eisteddfod competitor.
The essays cover various subjects such as the history of the interludes of Wales, Idris Fychan, Inigo Jones, Sir John Wynn and Gwydir families, ghosts and fairies. These were entered for Eisteddfod competitions in the 1900's. In addition, there is an interlude by Elis y Cowper, in his own hand, entitled Captain Argulus, 1756.