Ruth Marlyn Deetz-Rosko passed away at her residence in Glen Rock, PA on Monday June 13, 2022. She was born on March 25, 1935 in Baltimore, MD to the late John H. and Henrietta A. (Miller) Pfeffer. Ruth worked as a cashier for many years in the Grocery industry. Ruth was an avid reader, she loved to cook, do Canvas art, cross word puzzles, and truly enjoyed her Bible studies. Ruth is survived by her loving children; Linda Plummer, Thelma Deetz, James Deetz, and Patricia Boyd; 8 grandchildren, Kevin, Jamie, Jennifer, Nikita, James, Ashley, Kelly, and David; 18 great grandchildren; and her dear sister, Martha Glahn. She is preceded in death by her daughter, Jean Schwaigger; and her husbands, James Edwin Deetz, Sr. and Terence Joseph Rosko. Services will be private and at the convenience of the family. Hartenstein Funeral and Cremation Care, Inc. is assisting the family.