 In 1874, Jaeger married Elise Grosse (1854–1913), also of Saint Louis.Together, they had four children, Herman (1878–1923), Lena (born 1881), Emma (born 1884), and Carl (1892–1950).Intelligent and proficient in several languages, Hermann Jaeger worked to breed over 100 new varieties of grapes, many of which came from wild Ozarks grapes - grapes commonly called "possum grapes".