I found Suzanna Sulik Toczko's obituary:
SULIK, Suzanna (Toczko). On Monday, November 22, 1999, had peacefully passed away Suzanna Sulik, wife of the late Dominik Toczko. Beloved mother of the late Edward Toczko, dearest mother-in-law of Maria Kawecka, "Babcia" of Teresa, Edziu and Michal. Also great-grandmother of Melissa, Ryan, Kyle, Kristan, Ethan, Joshua, Bethany and Jessica, and sister of Josef Sulik. Resting at Alfred Dallaire Inc., 3254 Bellechasse, Montreal, Thursday, November 25, 1999 from 7 to 10 p.m. A Rosary will be held at the parlour on Thursday at 7 p.m. Funeral on Friday, November 26, 1999 at 11 a.m. at St-Mary's Polish Church, 2550 Gascon, Montreal. Thence to Notre-Dame des Neiges Cemetery.
Source: Gazette (Montréal), November 24, 1999
It sounds as if she and Dominik Toczko only had one child: Edward. Perhaps she was Dominik's second wife? (but, again, it's not proven he is "your" Dominik yet...) No birth year is given for her, but she was a great-grandmother, so I'm guessing 1900-1910?