Mrs. Bowen was a daughter of the late U.S. Supreme Court Justice Lewis F. Powell Jr. After moving to the Pacific Northwest in 1992 with her husband, Robert Bowen, Mrs. Bowen’s love and affection for nature was rekindled, her husband said. “She was very, very keen on people of all ages having a better and deeper understanding of this world out there,” her husband said. A member of Washington State University’s Beach Watcher program, which monitors the environmental health of Whidbey Island, Mrs. Bowen played a part as the group preserved the skeleton of a 33-foot gray whale that had washed ashore in 1998. The project was completed in 2000, and the skeleton is on display at the Coupeville Wharf. Before moving to Whidbey Island, Mrs. Bowen taught at the Tuckahoe Montessori school in Richmond. She also worked for the Richmond bureau of The Washington Post and served as director of the volunteer program at the Science Museum of Virginia. Mrs. Bowen traveled extensively with Museums/USA: Worldwide Educational Expeditions, founded by her husband. In addition to her husband, survivors include a daughter, Lycia Carmody Fried of San Francisco; a son Nathaniel Chase Carmody of Falls Church; two sisters, Josephine Powell Smith of Houston and Molly Powell Sumner of Salt Lake City; a brother, Lewis F. Powell III of Richmond; and 14 grandchildren.