Glayden E. "Smitty" Smith, of O'Fallon, Missouri, died on Saturday, October 29, 2011 at the age of 75. Loving husband of Marilyn M. Smith (NÉE: Brown), and the late Marilyn J. Smith (NÉE: Garrett); beloved son of the late Virgil and Lovey Smith; devoted father of Glayden E. "Gene" (Sharon) Smith, Jr., Greg (Dana) Smith, Darin (April) Smith; loving stepfather of Mark (Lisa) Presson and Lisa (Paul) Lucido; cherished grandfather of 11 grandchildren and 3 great-grandchildren; and brother of Jerra (Jim) Robinson. Glayden was a beloved brother-in-law, uncle, nephew, cousin, and friend to many. He is preceded in death by his son, David Smith; and brother, Lanny Smith. Memorials may be made to Barnes Jewish St. Peters Hospital, 10 Hospital Drive, St. Peters, MO 63376, or to the Center for Autism Education, 105 Sheriff Dierker Court, O'Fallon, MO 63366.