K.C.E.O.H.S., M.D., CCFP, PhD Physiology, MA Theology


It is with great sadness that we announce the passing of Greg on April 12, 2018. Born August 17, 1944 in Galt, Ontario, the only child of the late Armand John De Marchi and the late Elizabeth Theresa De Marchi (née Crompton). He is survived by his wife of 32 years Dr. Marianne Duemler and his five children: Dr. Joshua Armand De Marchi (Dr. Sinead Maguire), Rachel Elizabeth De Marchi (Gary Watterson), Paige Simone De Marchi (David Shebib), Naomi Clare De Marchi and Sydney Lise De Marchi.

As a young adult he became a Trappist monk at the Abbey of Gennesee, New York. His later travels took him to Oxford, England where he was granted his doctorate, and then to University of Toronto and McMaster University where he received his medical education. He practised community family medicine at St. Michael's Hospital, Toronto prior to becoming chief medical advisor to the Ontario provincial Ministry of Children and Youth Services. After his retirement he received his Masters in Theology from Regis College and was ordained a deacon in the Roman Catholic Church, Archdiocese of Toronto.

Throughout his life's journey he travelled and lectured extensively. He has authored many publications in various fields of endeavor. While in Japan he earned his sixth degree black belt in Jiu-jitsu. He had many other passions in life including language, art and restoration, and has mentored many young lives.

His love for people and learning has instilled great values in his children and one hopes his legacy will continue to touch many lives.

The funeral Mass will be held at St. Andrew's Church, 47 Reynolds St., Oakville on April 19 ^th at 11 am. Visitation is at Kopriva Taylor Community Funeral Home, 64 Lakeshore Road West, Oakville on April 18 ^th from 3-8pm. Those wishing to commemorate Greg's life may do so by making a donation to a charity of their choosing. Interment will be private and for immediate family only.