Peacefully, on Saturday, March 10, 2018, at her home in Seagrave, at the age of 87.Thelma (nee Dart) loving mother of Carolyn Kniff, Robert Nagle (Loressa), Walter Nagle (Laurie) and the late Fred Nagle.Loved grandmother of Christopher Kniff, Natasha, Amanda, and Sara Nagle (Derek Savage), Shannon Nagle, Laura McColm (Tim), Marty Gerrits (Paula), and Laurie Gerrits.Great grandmother of Austin Nagle, Adien Ellis, Courtney, Owen, and Conner McColm, and Kyrian Gerrits.Dear sister of Thomas Dart (Helen). The Family of Thelma Jeffries will receive friends at the Wagg Funeral Home, Port Perry, on Tuesday, March 13th, 2018 from 10 a.m. – 12 p.m. Interment Pine Hills Cemetery, Scarborough at 1:30 p.m. If desired, memorial donations may be made by cheque to the Princess Margaret Hospital Foundation .