Walker, Delmar, of O'Fallon, Missouri, died on Tuesday, January 4, 2011 at the age of 71. Cherished husband of Judy Walker nee Orr; dear son of the late Isaac Rosco and Sella Lee Walker; devoted father of William Andrew Walker, Benjamin Scott (Amanda) Walker and Casey Alan (Beth) Walker; beloved grandfather of Colin Raine, Cooper Alan, Samuel Ray, Ethan Michael and Addison Marie; dear brother of Isaac Walker, Marion J.(Walker)Ridgeway, and Betty (Walker) Babbs; dear brother-in-law of Edward Fowler; dear uncle of Cheryl (Jim) Bowles, Roriann (Rus) Howard and Scott Fowler. He was a loving uncle, cousin and friend to many. He is preceded in death by his brothers and sisters, Ruth, Lawrence J., Dorothy, Dewey and Robert Dale. Delmar was employed as a School Bus Driver and served in the National Guard. Memorials may be made to St. Jude Children's Research Hospital.