Mary Theresa Casey, 86, passed away peacefully on February 21, 2008. Mary was born in Ridgetown, Ontario, Canada on February 23, 1921. She is survived by brother Owen and wife Lillian Casey of Toronto, Ontario; sister Nora and husband Patrick Dunlop of Wallaceburg, Ontario; sister Anne and husband Timothy Hennessey of Trenton, Michigan; and several nieces, nephews, and good friends. Mary is preceded in death by brothers William Casey, and Edward Casey and wife Gertrude. For several years Mary lived in Detroit, Michigan where she was a registered nurse for General Motors. She retired and moved to Scottsdale in 1984 where she was an active member in the church and the community. Viewing will begin at 8:30 A.M. on Tuesday, February 26th at St. Theresa Catholic Church, 5045 E. Thomas Rd., followed by mass at 10:00 A.M. Interment will follow at St. Francis Cemetery. Funeral arrangements under the direction of Whitney & Murphy Funeral Home. In lieu of flowers donations to Hospice of the Valley are welcome.