Toriad o gylchgrawn The Navy (Cyf. LVII, rhif 7) (Gorffennaf 1952) yn cynnwys llun o Sion Silyn Roberts, mab Glynn Silyn Roberts, yn trin cwch hwylio. Pennawd y llun yw 'A Yachting World Cadet'. Arnodir y toriad yn llaw Mary Silyn Roberts: '"SION" on his ear nearly!! (mab Glynn Silyn Roberts)'. = Press cutting from The Navy magazine (Vol. LVII, no. 7) (July 1952) showing a photograph of Sion Silyn Roberts, son of Glynn Silyn Roberts, handling a sailing boat. The photograph is headed 'A Yachting World Cadet'. The cutting is annotated in Mary Silyn Roberts' hand: '"SION" on his ear nearly!! (mab [son of] Glynn Silyn Roberts)'.