Passed away peacefully at Southlake Regional Health Centre on Tuesday May 12, 2015. Beloved wife of the late Steve Koller (1989). Loving mother of Herb and his wife Patricia and Helga Steurnagel. Cherished grandmother (Omi) of Angela and her husband Scott Plumley, Cathleen and her husband her husband Chris Herbert and Peter Steurnagel. Great grandmother of Jacob and Allison Herbert and Mason and Brielle Plumley. Visitation will be held on Tuesday May 19, 2015 from 6:00 - 8:00 p.m. at the Thompson Funeral Home, 530 Industrial Parkway South (at Yonge St.). The Funeral Service will take place on Wednesday May 20, 2015 at 11:00 a.m. in the Thompson Funeral Home Chapel. In lieu of flowers donations to the Alzheimer Society or Heart & Stroke Foundation will be appreciated by the family. Online condolences at www.thompsonfh-aurora.com.