Julia K. Rosenwald, of Philadelphia and Chilmark, died peacefully in the Philadelphia family home in which she had lived for the past 70 years. She was 101.

Extremely involved in the community, she served on many civic boards. She was particularly proud of her work with the Federation of Jewish Agencies, the Child Study Center of Philadelphia, and the Child Welfare League of America, based in New York city. She volunteered at the Conwell School in Kensington, helping students who had difficulty learning to read, and later taught English as a Second Language at the Nationalities Service Center in Philadelphia. She stayed in touch with many of her students well into their adult lives.

Judy, as she was known, was born in Philadelphia on Jan. 9, 1916, to William Greenewald and Sara Lieberman Greenewald. She attended Cheltenham High School and Sarah Lawrence College. She had an enormous and beautifully curated collection of friends of every age and from every area of her life, and she remained close to a great many of them until her death.

Judy and her late husband, Julius (Dooley) Rosenwald 2nd, discovered Martha’s Vineyard in the late 1930s when they were newly married. They introduced their children to the Island in the early 1950s, renting houses many summers until they built their summer shack, as they called it, in 1963. Thanks to Judy and Dooley, there are now four generations of Rosenwalds who love the Vineyard. Judy continued to visit the Island almost to the end of her long life.

She is survived by her three children: Karen Gundersheimer and her husband, Werner; Linda Levy and her husband, Paul; and Julius Rosenwald 3rd and his wife, Margo Cardner. She leaves five grandchildren: Jeffrey Levy and his wife, Elizabeth; Deborah Jordan-Levy and her partner, Jayne; Timothy Levy and his wife, Catherine; Joshua Gundersheimer and his wife, Eileen; and Benjamin Gundersheimer and his wife, Katherine Jamieson. She leaves 11 great-grandchildren: Charles Levy, Elias Levy, Catherine Levy, Sarah Levy, Henry Jordan-Levy, Emma Gundersheimer, Alison Levy, Oscar Jordan-Levy, Molly and Matthew Gundersheimer, and Emily Levy. Her half-brother, Bart Cahan, and his three children also survive her, as do many grand- and great-grand nieces and nephews. In addition, she leaves Darlene Paige, her devoted friend and caregiver, who captained a team of caregivers that was unparalleled.

A memorial service will be held at a later date. Contributions to the charity of your choice would be most welcome.