Mrs. Sandra Jo Robertson, 58, of Douglasville, Georgia passed away Friday, May 29, 2015. Born in Erie, Pennsylvania 1956, Sandra is the daughter of Henry and Edna Terwilliger, and sister to five siblings. She is survived by her husband, Scott as well as two children, Elliott and Emily. A talented academic, Sandra excelled in her studies graduating with a B.S. in geology from Edinboro University in 1978 and an M.S. in geology from the University of Tulsa, Oklahoma in 1981. After leaving University she began her career working as an exploration Petroleum Geologist in Oklahoma. Following moving to Douglasville, Georgia in 1990 she began her tenure at Georgiaâs Department of Natural Resources, securing clean water for its residents for over 25 years. Additionally, she continued her love of learning by teaching at Mercerâs Douglasville campus for more than 20 years. Sandraâs incredible compassion, generosity, patience, kindness and trust touched an untold number of lives. Throughout her life she always remained focused on her family. Her husband and children are humbled by her life and strive to live by her example. Please share your memories of Sandra with her family at her memorial service, Sunday, June 7, 2015 at 3:00 PM at the Chapel of Jones-Wynn Funeral Home in Douglasville. The family will receive friends at the funeral home from 2:00 PM until 3:00 PM. Messages of condolence to the family may be sent at www.jones-wynn.com. Jones-Wynn Funeral Home and Crematory of Douglasville is in charge of arrangements. 770-942-2311