Cynthia Folzer (1936-2020) born in Evanston, Illinois came to Ontario in 1972 with husband George Renninger after obtaining her PhD in inorganic chemistry from Rutgers University. She continued her university studies and teaching at U of Waterloo in inorganic chemistry until retirement in 1990. Cynthia devoted her retirement to strong advocacy for environmental protection, stewardship and social justice with many groups including: Raging Grannies, Wellington Water Watchers, Council of Canadians and the Yorklands Green Hub. Her quiet but active support whenever needed was always appreciated.