Mary Jane Mahoney (nee Olson) 74, of Des Plaines passed peacefully March 23rd beloved wife of Clarence for 52 years; loving mother of Tim (Lisa), Mary "Molly" (Brent) Kuhlemeyer, Tom (Renee) and the late Karen; loving grandmother of 8 and great-grandmother of 2; fond aunt to many nieces and nephews.  Prayers Monday at 9:00 a.m. at Cooney Funeral Home, 625 Busse Hwy, Park Ridge to St. Zachery Church.  Mass at 10:00 a.m.  Visitation at Cooney Funeral Home, 625 Busse Hwy., Park Ridge on Sunday March 26th from 1 to 7 p.m.  Interment All Saints Cemetery. For info (847) 685-1002 – www.cooneyfuneralhome.com.