In 1951, Andre Rault and his brother installed 43 stained glass windows in the Cathedral.

All windows were dedicated to Our Lady in themes.

These five major windows on the east side of the Cathedral are Mary's Sorrows.

These five major windows on the west side of the Cathedral are Mary's Joys.

This large round window is known as a rose window.

There are three of them in the Cathedral, one on each side and one at the front facing 13th Avenue. The windows are significant as they have written on them the names of Mary's progenitors, also known as her ancestors, which is taken from the Gospel of St. Luke.