A collection of the poetical compositions of Bardd Du Mn in his own hand. Elegies mainly, but also compositions for Eisteddfod competitions, including his ode for the controversial Aberffraw Eisteddfod in 1849. Also, miscellaneous papers which include letters by Robert Williamson which relate mainly to poetry and competitions.
Historical essays and fictional tales by Owen Williamson all of which have a strong Anglesey connection. In particular, there are works on the history of Newborough and the surrounding area e.g. Llanddwyn, Tal-y-Foel. A few poetical compositions on such topics as Newborough, Llanddwyn and Edmund Prys, Archdeacon of Merioneth, which were most probably entered in Eisteddfod competitions. Also, genealogical notes, transcripts of documents and translations of articles.
Lecture note books of Owen Williamson and his brother whilst attending the North Wales Training College, ca 1859-1860.
A vestry record containing an account of the high road duty performed in the upper part of the parish of Llangeinwen, Anglesey, 1813-1829.