Dr. Dorfmüller's privately held partial estate contains a typewritten biography from the year 1952 about Wilhelm August Hilpert, who worked as an assistant to Professor Otto von Grove at the mechanical-technical department of the Technical University of Munich in 1894 and was later appointed as a professor at the Technical University of Berlin. Dr. Dorfmüller obtained his doctorate from the chemical department of the Technical University of Munich in 1909.