Dennis L. St. Clair Obituary
It is with great sadness that we announce the death of Dennis L. St. Clair of Naperville, Illinois, born in Centre Hall, Pennsylvania, who passed away on February 27, 2026, at the age of 72, leaving to mourn family and friends. Leave a sympathy message to the family on the memorial page of Dennis L. St. Clair to pay them a last tribute.
He was predeceased by: his parents, Robert St and Helen St; and his parents-in-law, Albert and LaVerne Foor. He is survived by: his wife Denise St. Clair; his children, Kelly St. Clair and Patrick St (Sarah); his granddaughter Elise; his siblings, Scott St (Angela) and Debra Lumadue (Mark) of Hollidaysburg, PA; his sister-in-law Diana Pryor (Jack) of Bedford, PA; and his grandson Charlie.
In lieu of flowers, donations in honor of Dennis can be made to: The Prostate Cancer Foundation (PCF), 1250 Fourth Street Santa Monica, CA 90401, 1.800.757.CURE (2873), https://www.pcf.org or Northwestern Medicine Proton Center (Patient Assistance Fund), https://nmgive.donordrive.com. The family has chosen to send donations to The Prostate Cancer Foundation (PCF) Donate Now (https://www.pcf.org).
