Barddoniaeth, Add to clipboard A160-73. Series 1888-1909. Part of Papurau T. H. Parry-Williams ac Amy Parry-Williams,
Barddoniaeth, Add to clipboard D. Series 1912-1973. Part of Papurau T. H. Parry-Williams ac Amy Parry-Williams,
Amrywiol, Add to clipboard A181-97. Series 1877-1973. Part of Papurau T. H. Parry-Williams ac Amy Parry-Williams,