The crest is divided into four quadrants.  The first displays a monstrance, reflecting the deep devotion that St. Margaret Mary Alacoque had from a young age for the Blessed Sacrament.  In the second quadrant, water flowing over a waterfall symbolizes the city of Hamilton.  The third quadrant represents the vow that Margaret Mary made to the Blessed Virgin Mary that she would enter religious life.  The fourth quadrant represents the open book of the Gospels featured on the window in the sanctuary of St. Margaret Mary Church.