Isaac ( Jack ) Landsberg, peacefully on Sunday, June 3, 2018 at his home. Beloved husband of the late Toby Landsberg. Loving father and father-in-law of Esther and John Marmora, Freda Landsberg and Richard Seecharan, Michael and Nancy Landsberg, and the late Helen James. Cherished Zaida of Jessica, Michael, Sarah, Emma, and Samantha. Special thanks to the Oncology staff at Sunnybrook Health Sciences Centre. Memorial donations may be made to the Canadian Cancer Society 1.888.939.3333 or to the Crohn’s & Colitis Foundation 416- 920-5035.