Mary Ellen Babcock Hangartner - Born June 19, 1925 in Chicago, IL passed away peacefully on July 3, 2009. Preceded in death by her son Michael John Hangartner in 1970. A private service is being held. Remembrance in her memory: Alzheimerâ??s Association, 1-800-272-3900. Family assisted by Parent-Sorensen Mortuary-Sebastopol, CA, 707-829-5433.