Aged 95, passed away on Saturday, August 14, 2021. Formerly of Mt. Lebanon, Ruth had been living for several years at Sunrise Senior Living in Upper St. Clair. Ruth was born on the North Side of Pittsburgh, the daughter of Edna and Elmer Erb. She married Robert C. Miller in 1945. Robert died in 1994. Ruth was the mother of Robert D. Miller of Upper St. Clair and Janet Miller of Wynnewood, PA. Ruth also is survived by three grandchildren and two great grandchildren. Ruth’s daughter Carol Eldridge of Houston, TX preceded her in death, as did her brothers Robert Erb and Donald Erb and her sister LaVerne Kotula. Interment will be private.