Remaining archives contain very little information about the directors of the three organizations, which fused to form The Polish Alliance of Canada and continue to use the charter of the Sons of Poland Brotherhood of Mutual Benefit as their own. Nevertheless, it is known that the presidents of the Sons of Poland Brotherhood were Ignacy Kolaczynski (the first president), Wojciech Bednarek, Czeslaw Kaminski, Wladyslaw Konopka, Henryk Downarowicz, Franciszek Czajkowski (served two terms), Mikolaj Jaworski, Antoni Waclawski (served five terms), and J. Wojtowicz.

Presidents of The St. Stanislaus Society were J. Gardyan, K. Kolaczynski (served two terms), F. Pyrkosz and P. Bilewicz (served five terms), while presidents of The Progressive Polish Union were A. Oszczepkowski, K. M. Albert, K. J. Mazurkiewicz and J. Jozwiak.