Isaäc Mug, a son of Abraham Mug and Mietje van Gogh, was born in Rotterdam on 27 March 1888. Isaäc was born deaf; however on his family registration card was mentioned : “deaf and dumb”. Isaäc was working as a docker before he was married. He also earned his money as a merchant in various goods.
On 9 August 1916 Isaäc Mug got married in Amsterdam to Esther Brilleman, who was also born deaf as a da…