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Archival descriptionDeunydd amrywiol yn ymwneud â Mary Silyn Roberts = Miscellaneous material relating to Mary Silyn Roberts
Deunydd amrywiol yn ymwneud â Mary Silyn Roberts = Miscellaneous material relating to Mary Silyn Roberts
Gohebiaeth bersonol Mary Silyn Roberts = Personal correspondence of Mary Silyn Roberts
Gohebiaeth bersonol Mary Silyn Roberts = Personal correspondence of Mary Silyn Roberts
Gohebiaeth bersonol Robert (Silyn) Roberts = Personal correspondence of Robert (Silyn) Roberts
Gohebiaeth bersonol Robert (Silyn) Roberts = Personal correspondence of Robert (Silyn) Roberts
Gohebiaeth rhwng Mary a Robert (Silyn) Roberts = Correspondence between Mary and Robert (Silyn) Roberts
Gohebiaeth rhwng Mary a Robert (Silyn) Roberts = Correspondence between Mary and Robert (Silyn) Roberts
Gohebiaeth swyddogol Mary a Robert (Silyn) Roberts (Cymdeithas Addysg y Gweithwyr) = Official correspondence of Mary and Robert (Silyn) Roberts (Workers' Educational Association)
Gohebiaeth swyddogol Mary a Robert (Silyn) Roberts (Cymdeithas Addysg y Gweithwyr) = Official correspondence of Mary and Robert (Silyn) Roberts (Workers' Educational Association)