Memorials may be made to the Alzheimers Association or the Juvenile Diabetes Research Foundation. Dellinger, William "Bill", of O'Fallon, Missouri, died on Thursday, November 12, 2009, at the age of 73. Devoted husband of Patricia Dellinger (nee: Mersch); dear son of the late Virgil and the late Grace Dellinger; loving father of Kathleen (Dennis) Yokeley, Cindilin (Michael) Pettibone, Vickie (Keith) Sammelmann, and Christine (Gerard) Atienza; treasured grandfather of Mathew, Marcus, Melissa, and Myles Yokeley, Staci (Tony) Campbell-Pettibone, Sr. Airman Eric Pettibone, Jay, Luke, and Lexie Sammelmann, Samuel, Sydney, and Skylar Atienza; cherished great-grandfather of Reilly Campbell; dear brother-in-law of Debbie (George) Kremer; Parker, his special pet; beloved uncle, cousin, and friend to many. He is preceded in death by his step-mother, Mary Dellinger, and his sisters, Louise McLemore and Marion Rogers. Bill was in management at McDonnell-Douglas for over 30 years. He was a member of the McDonnell-Douglas Camping Club and the Gateway Winnies. Special thanks to our family of friends at Delmar Gardens of O' Fallon who lovingly took care of Bill.