Thacker, John W. Beloved husband of Grace Thacker. Loving father of Mary (Len) Gugliotta, Thomas Thacker, Michael (Sheree) Thacker, Diane Massetti, Barbara (Pete) Foley and John J. (Deborah) Thacker. Grandfather of Jennifer (Tim) Burns, Christina (Greg) Rzemieniecki, Patrick Thacker, Anthoney Massetti, Peter and Caitlin Foley, great-grandfather of Megan and Colin Burns and Owen Rzemieniecki, fond brother of the late James, Edward, and Harry Thacker. Funeral Saturday 9:30 a.m. from GREIN FUNERAL DIRECTORS 2114 w Irving Park Rd to St. Benedict Church, Mass 10:00 a.m. Interment Private. Visitation Friday 3 to 8 PM. 773-588-6336 or GREINFUNERALDIRECTORS. COM