Gabriel Monnickendam, born 1893 in Amsterdam was a son of Izaak Monnickendam from Den Helder and Ribca Lissa from Amsterdam. He was unmarried and his worked as deliverer of bread in Amsterdam. Gabriel had a sister Henriette, who was married to Abraham Acathan, who lived in Amsterdam too.
His parents left Amsterdam for Veenwouden, municipality of Dantumadeel in the province of Friesland, where they…