[1][2] Oevaang Oeray, the first governor of West Kalimantan and one of the founders of the PPD, was a prominent leader of the party.

In October 1946 the Netherlands Indies Civil Administration (NICA) appointed seven PPD members to the West Kalimantan Council (which had 40 seats in total).

Half of the members of the administrative board of the West Kalimantan Special Region were from the PPD; Oevaang Oeray, Lim Bak Meng (a Catholic Chinese) and A.F.

It sought cooperation with NICA in order to strengthen its positions, but did at the same time use opportunities to criticize Dutch 'interference' in Dayak affairs.

[1] In the election to the West Kalimantan provincial council in the same year, the party won nine out of 29 seats.