Polish People's Party
In the elections to the Diet of Galicia and Lodomeria on June 30, 1913, Ptak did not receive re-election, losing his mandate to the benefit of Józef Serczyk of the People's Party. Ptak was a member of the Polish People's Party Supreme Council during its meeting in Tarnów on December 13, 1913. At the meeting the party has split into the Polish People's Party "Left", which gathered supporters of Stapiński; and the Polish People's Party "Piast", led by Jakub Bojko and Wincenty Witos. Franciszek Ptak joined the Polish People's Party "Left" and was elected a member of its Supreme Council on April 5, 1914. On June 28, 1914, together with Franciszek Wójcik, he addressed the peasants with financial support for the Polish People's Party "Left".