1 Johann Heinrich Nicolaus KNORR =Marie Dorothee Elisabeth CORDES 2 Wilhelm Heinrich Otto KNORR =Bertha Mathilde Marie KNOOP Marriage: 19 Feb 1932, Artlenburg, Duitsland 2 Karl Johann Heinrich KNORR =Dora August Catharina KNOOP Marriage: 31 Oct 1933, Artlenburg, Duitsland