The author analyzes a short Saratov period of the course of life of a well-known German social democrat Ernst Reuter. According to the directive of the RSFSR Council of Peoples Commissars Chairman V. I. Lenin and Peoples Commissar on Nationalities J. V Stalin a German war prisoner and communist Ernst Reuter was sent to Saratov Volga Region in April 1918 where he became the leader of the Volga Region Commissariat on the Germans.