Gregory K. Doc Whittam, age 60, of Crete, IL, passed away Thursday, March 24, 2011. Beloved husband of Denise K. Whittam nee Spudich. Devoted father of Karen Whittam and Kaitlyn Whittam. Proud grandfather of Paige, Karli and Brandon Chocholek. Dear brother of William (Sammy Ip) Whittam and the late Michael Whittam. Brother-in-law of Barbara (Frank) Wilkins. Nephew of Robert (Mary) Whittam. Loving son of the late Dr. Joseph (late Catherine) Whittam and the late Eleanor Whittam nee Juleen. Kind uncle and cousin of many. Visitation Tuesday, March 29, 2011 from 2:00 - 9:00 p.m. Funeral service Wednesday, March 30, 2011 " time pending at the Smits Funeral Home 2121 Pleasant Springs Lane (Rt. 30 & Pleasant Springs Lane) Dyer, IN. Interment Private. Mr. Whittam was the owner and founder of Whittam Vision Center in Calumet City for 23 years and a member of the Calumet City Lions Club.