- P1/12.
- Ffeil
- 1874-1901.
Pocket notebooks kept between c. 1874 and c. 1901, many undated, containing adjudications by Gwilym Cowlyd on bardic competitions at various eisteddfodau, miscellaneous accounts, minutes of various committees, copies of poems and prose works, and a volume endorsed, 'Cymmrodoriaeth Barddas Glan Geirionydd. Gwilym Cowlyd's Book' and containing copious notes, poems and accounts for the years 1896 until 1901 on 'Arwest Geirionydd'.