Treen, Mary Ellen - Passed away peacefully at Lakeridge Health Oshawa, surrounded by the family she loved so much, and who adored her more than anything in the world. Deeply beloved wife of Ron, who is grateful that they were able to spend 35 happily married years together. Incomparably wonderful mom to Lanie and Kelly (Adrian), who made their mama so proud. Loving Grammy of Roger. Profoundly missed by her brothers Dave and Phil, and her nieces and nephews. She was kind, clever and funny, and had a big, glorious laugh. She was the heart, the soul and the rock of the family...and the boss. Her loved ones will treasure their memories of her forever. Visitation will be on Thursday, December 21st, 2017 at 12pm, followed by a Celebration of Life at 1pm at Armstrong Funeral Home, 124 King Street East, Oshawa. Her family will host a reception to follow at 117 Pringle Drive, Whitby ON, L1N 6K3. In lieu of flowers, donations can be made in her memory to Diabetes Canada, and may be made along with condolences, by visiting www.armstrongfuneralhome.net.