Williams, Brynbach, Llanenddwyn, 19g.
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Part of Papurau Bob Owen, Croesor,
Williams, Brynbach, Llanenddwyn, 19g.
Part of Papurau Bob Owen, Croesor,
Williams, Bryngelynen, Croesor.
Part of Papurau Bob Owen, Croesor,
Williams, Dwyfaen, o Rys Wyn, Clocaenog, hyd 20g.
Part of Papurau Bob Owen, Croesor,
Williams, Dyffryn, a Roberts, Llanaber, 19-20g.
Part of Papurau Bob Owen, Croesor,
Williams, Gellidywyll, 18-19g.
Part of Papurau Bob Owen, Croesor,
Williams, Hafod Lwyfog, Cwmdyli a Hafod y Llan, 19g.
Part of Papurau Bob Owen, Croesor,
Part of Papurau Bob Owen, Croesor,
'Y Barque Hindoo' gan Gruffydd Parry, seiliedig ar ymchwil Bob Owen.
Part of Papurau Bob Owen, Croesor,
10 Gorff. 1947, teipysgrif, 14 tt.
Y Bywgraffiadur Cymreig a Bob Owen.
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,
Copi arall, teipysgrif, 5 tt.
'Y Cefndir Diffrwyth', 1600-80 (Y Crindir Cras).
Part of Papurau Bob Owen, Croesor,
Llawysgrif, 32 tt.
Part of Papurau Bob Owen, Croesor,
Nodiadau mewn llyfr ysgrifennu.