My mother Lore Gotthelf was first cousin to Charlotte Cohen, and as a child visited her during the summer from Frankfurt in Zutphen in Holland. Bram, her Dutch husband was listed professionally as a translator but was also a chocolate salesman for the Dutch chocolate firm Kwatta and always had wonderful samples to try -- this is a favorite story of my mother's.
Charlotte(Lotte) was survived by her younger sister, Emmy Cohen Marx Dreyfus who had emigrated to London England with her husband Hugo Marx in 1939, and later in life married Sylvain Dreyfus living in Lausanne Switzerland until her death in 2005.
Lotte and Emmy's mother Rosa Gotthhelf Cohen was Lore's aunt and sister of her father. She is also listed on this database, lived in Burgsteinfurt, in Northern Germany, had left Germany to Amsterdam to live with her daughter and son-in-law and was deported to Sobibor from Amsterdam. Lotte