Donald D. Keller Sr., age 81, of Grant Park, IL, passed away peacefully on Monday, October 19, 2015. Beloved husband of the late Delores Jean Keller, nee Buff. Dear father of Allan (Laura) Keller, Terry Lynn Guerrero and the late Donald Keller Jr. Loving grandfather of Stacy, Melissa, Donald III, Chris, Jose Sr., Cassi, and Angel; Great-grandfather of Analiese, Jason, Jose Jr., Sergio, Nevia, and Marcelino. Preceded in death by 4 brothers and 4 sisters. Visitation Saturday, October 24, 2015 from 2:00 P.M. until the time of the funeral service at 7:00 P.M. at Smits, DeYoung-Vroegh Funeral Home 649 E. 162nd St. (Rt.6/159th St.) South Holland, IL. Mr. Keller was a U.S. Army Veteran and a retired employee of Allied Tube. For further information please contact 219-322-7300 or visit www.SMITSFH.com