Franciszek Józef Bartoszek (aka „Jacek”, „Stefan”) was born on 27 October 1910 in Pierania (Kujawsko-Pomorskie Province). During World War II, he lived in Lviv (Ukraine), and later he moved to Jasło (Podkarpackie Voivodeship). From January 1942, he was a member of the Polish People’s Party (PPR), and in May 1942 he was appointed deputy commander of a special group of the General Staff of the People’s Guard (GL). He commanded its unit during an attack on German machine gun positions near the Warsaw Ghetto, where the uprising was in progress. He was killed on 14 May 1943 in Warsaw during an armed action against the „Społem” bank.