According to tradition Salomon (Salo) Aronius was a handsome boy, who was always dressed neatly. He was a loner. He went to the primary school in Zwartsluis in the Schoolstraat. Because studying there did not go satisfactory, he went to the Mackay school in Meppel at the age of eleven.
See: D. Driessen, ‘Voor ik het vergeet’, Sluziger Kroniek 28 (Historische Vereniging van Zwartsluis, december 19…