The archaeologist Johannes Adolph Overbeck (1826–1895) was Constance Jauch's grand-grandson. Her great-granddaughter Cäcilie Lotte Eleonore Overbeck (1856-post 1920), married the anthropologist and ethnologist Emil Ludwig Schmidt (1837–1906), who was personal physician of the hypochondriac "Cannon King" Alfred Krupp. The great-granddaughter Wilhelmine Friederike Charlotte Overbeck (1829–1908) was wedded to the well known mechanical engineer Franz Reuleaux (1829–1905), chairman of the German panel of judges for the Centennial International Exhibition in Philadelphia 1876. Great-great-granddaughter Agnes Elisabeth Overbeck (1870–1919), a pianist, was married under the pseudonym "Baron Eugen Borisowitsch Onégin" to the operatic contralto Sigrid Onégin, who sang inter alia at Metropolitan Opera and Covent Garden.