GRIGGS, Margaret C., age 83, of Clarkston, formerly of Auburn Hills, died July 17, 2013. Margaret retired from the Pontiac Community School System as a Boiler Engineer after 22 years of service. She was a member of the Church of God of Prophecy and the Senior Center of Auburn Hills. Beloved mother of Johnnie (Lisa) Griggs, Joe (Marian) Griggs, Martha (Ed) Thompson and Donna Russell. Grandmother of Christina, Steven, Philip and Elizabeth. Also surviving are her ten great-grandchildren. Funeral Service 1:00 p.m. Saturday at PIXLEY FUNERAL HOME, 322 W. University Drive in downtown Rochester. Visitation Friday 2-4 & 6-8 p.m. Memorial contributions to the Alzheimers Association would be greatly appreciated.