According to records, he was already in Canada in 1923, but no other biographical information about him can be found. It is possible that he is the same person as Benjámin Csáki.
Csáky Demjén: personal record. In: Historical directory of Hungarian, Hungarian-descended, and Hungarian-speaking clergy serving abroad. Available at: https://www.diaszporalelkipasztorok.hu/persons_v2/view.php?id=145 (accessed: 2026-04-05).