After moving to the Wynnefield area in the early 1940s, Sidewater and her husband, Morris (founder of Charming Shoppes Inc., the women's apparel retailer headquartered in Bensalem), became members of Har Zion Temple, where she was active in the Sisterhood for many years.
Along with her husband, she contributed to many charities, including the U.S. Holocaust Memorial Museum. For their generosity, the couple received the museum's Founder's Award in July 1994.
Evelyn Sidewater was the daughter of Samuel and Sarah Tarter of Camden, N.J., and her father was a founder of Sons of Israel synagogue and the Jewish Federation of South Jersey.
In addition to her husband, Sidewater is survived by sons Samuel (Kate) Sidewater and Steven Sidewater; sister Dorothy Vederman; four grandchildren, Nancy, Wendy, Peter and Christina; and four great-grandchildren, Benjamin, Sadie, Ava and Hallie.