DeCoursey, David, 66, of Chicago, passed away on Thursday, December 18, 2014 in the loving care of his family.  Beloved husband of Joanne (nee Lingle) for 42 years; devoted father of Jan (Patrick), Kathryn (Edward) and Donegan; very proud granddad of Liam, Aidan, Claire, Dylan and Emily; dear brother of Vincent, Thomas, Robert, Stephen and John; fond uncle of many nieces and nephews.  David was the Executive Director of Leadership Greater Chicago for over 25 years.  Visitation at St. Josaphat Church 2311 N. Southport on Monday, December 22 from 2:00 to 5:00 p.m. with the funeral mass following at 5:00 p.m.   Interment private.  In lieu of flowers, the family requests that donations be sent  to Leadership Greater Chicago Fund for the David DeCoursey Fellow, 111 East Wacker Drive, Ste 1220, Chicago, IL 60602 or the charity of your choice.  Info 773-588-5850 www.cooneyfuneralhome.com