Hans_Jakob_(Esperantist)
Hans Jakob Notz (Heidelberg, 15 December 1891 – Geneva, 1967) was a German-born Swiss Esperantist. His real name was Franz.
A student of Commerce, he moved from Heidelberg to Geneva in 1912, so that he could follow his studies. He would live in Geneva the rest of his life.
There he started to work for the World Esperanto Association, of which he had been a member since 1909. In 1934 he resigned from the role of Director, as a form of protest, and started working elsewhere. In the end, he worked in an office of the Swiss federation until he retired.
He got married two times, and had a daughter. He was a member of the Swiss Socialist Party.