Diane Lousie Truesdell, 78, of Village Hill Rd passed away unexpectedly after a brief illness at Cooley Dickinson Hospital on Thursday, April 9, 2026. She was born in Shelburne Falls, a daughter of the late Wayne H. and Phyllis M. (Clark) Truesdell. She graduated from Arms Academy and late Springfield Technical Community College. Diane worked at Cooley Dickinson Hospital in the Chemistry department over 37 years. She also worked at the Lathrop Community in Northampton for many years. She was predeceased by her parents and also her longtime partner, JoEllen Snyder Smith in 2016. She leaves many close and dear friends in the area. As per her request, all services will be private. Diane and JoEllen will be laid to rest at Village Hill Cemetery in Williamsburg at a private service. Donations in Diane's memory may be made to Highland Ambulance, P.O. Box 842, Goshen, MA. 01032-0842