Freitag, Doris C. (Pfeil) of Lexington (June 1, 1927 - May 5, 2023). Beloved wife of the late Dr. Wolfgang M. Freitag. Loving mother of Thomas Martin Freitag and his wife Nicola of Switzerland, and Dr. Tilman Freitagand his partner Helen Schwickrath of Arlington. She is also survived by a beloved grandchild, Tobias Martin Freitag. Doris was a Book Conservator and Book Binder at the Harvard Divinity School for 48 years. Services are private with interment at Mt. Auburn Cemetery, Cambridge.