Claim: Osip Piatnitsky (a Russian revolutionary) went to Paris following the Prague party conference, where he trained as an electrician, then he returned to Russia in 1913, taking a job as an electrician in the town of Volsk in Saratov Oblast.
Evidence: Osip Aaronovitch Piatnitsky (Russian: Осип Аронович Пятницкий; 1882 – 1938), born Iosif Aronovich Tarshis, was a Russian revolutionary. As he sought to return to Russia to work in industry, Piatnitsky went to Paris following the Prague party conference, where he trained as an electrician. He returned to Russia in 1913, taking a job as an electrician in the town of Volsk in Saratov Oblast, located on the banks of the Volga River.