- 58-59.
- Sub-series
- 1937-1955.
Part of Papurau'r Parch. Gerallt Jones,
Part of Papurau'r Parch. Gerallt Jones,
Part of Papurau'r Parch. Gerallt Jones,
Part of Papurau Idwal Jones,
Cyfres o lythyrau oddi wrth Idwal Jones at ei rieni ac at Olwen, ei chwaer, o'r cyfnod pan oedd yn cyflawni ei Wasanaeth Cenedlaethol, 1916-19.
Part of Papurau Idwal Jones,
Part of Papurau Bob Owen, Croesor,
Part of Papurau Bob Owen, Croesor,
Part of Papurau Bob Owen, Croesor,
Part of Papurau Bob Owen, Croesor,
Cofnodion teipysgrif yn ymwneud â Sir Feirionnydd.
Part of Papurau Bob Owen, Croesor,
Cyngor Gwlad a Chymdeithas Diwydiannau Gwledig Sir Gaernarfon.
Part of Papurau Bob Owen, Croesor,
Part of Papurau Bob Owen, Croesor,
Part of Papurau Bob Owen, Croesor,
Part of Papurau Bob Owen, Croesor,
Dyfyniadau o lawysgrifau Bangor, gan mwyaf.
Part of Papurau Bob Owen, Croesor,
Y Bywgraffiadur Cymreig a Bob Owen.
Part of Papurau Bob Owen, Croesor,
Part of Papurau Bob Owen, Croesor,
Part of Papurau Bob Owen, Croesor,
Mynegai i lawysgrif ym meddiant Syr John Williams, Plas, Llanstephan.
Part of Papurau Bob Owen, Croesor,
Part of Papurau Bob Owen, Croesor,
Part of Papurau Bob Owen, Croesor,