Pieter Joseph Canisius⁽¹⁾ was born⁽²⁾ on 19 Mar 1809 in Wittem, L. He married⁽³⁾ Maria Catharina Houppermans on 6 Aug 1830 in Voerendaal, L.
Maria Catharina Houppermans⁽¹⁾ was born⁽²⁾ on 23 Feb 1807 in Wittem, L. She married⁽³⁾ Pieter Joseph Canisius on 6 Aug 1830 in Voerendaal, L.