Born in Switzerland Hermann Jaeger (1844-1895) was a grandson of the famous pedagogue and school reformer Johann Heinrich Pestalozzi (1746-1827) and learned the profession of a gardener. He emigrated to America as a young man and settled in 1865 east of Neosho, Missouri. Together with his brother John, he worked there grape cultivation. As a result, he worked as a breeder of grape varieties, wrote regularly on articles for magazines and exchanged information with European grape experts. For this purpose he prefers selections of Wild vines of the species Vitis lincecumii from the Ozarks area in Missouri by. Jaeger experimented with it intersections other American species like Vitis aestivalis and the reblausresistenten Vitis rupestris,
In the 1870s, the escalated phylloxera in Europe. When they finally recognized the cause of the vine dying, was searched worldwide for resistant vines. Missouri entomologist Charles Valentine Riley (1843-1895) introduced the great resistance hunter varieties against the pest. The Jaeger vines and many others of nurseries from Missouri were exported in huge quantities to Europe and used in the fight against the pest.
The most important hunter was the Jaeger 70, who later became the friend of his US botanist Thomas Volney Munson (1843-1913) as Munson was designated. This was mainly from the French breeder Albert Seibel (1844-1936) for many of his new varieties used and was, so to speak ancestor of numerous French hybrids, Jaeger vines were also among others in the new breed of American hybrids America, Estella, Kiowa, Quintina, rosette and Waubeck involved. For his service to vine and wine Hermann Jaeger was appointed by the French government in 1893 Knight of the Legion of Honor. Two years later, he disappeared without a trace and left a farewell letter; suicide is suspected.