A picture of a 'Biology' class at Ysgol y Sir, Bethesda (later Ysgol Dyffryn Ogwen), with their teacher, Dr R. Alun Roberts.
The class was held by the University College Council, Bangor, between 1933 and 1938. W.J. Roberts standing in the middle of the second row from the front, with his sister, Hefina, on his right.