Robert Adrian Kaiser, of Lake Saint Louis, MO, passed away Tuesday, May 19, 2020 at the age of 91. Beloved husband of the late Mary Kaiser; cherished son of the late Adrian and Della Kaiser; devoted father of Mark (Brenda) Kaiser; loving grandfather of Jennifer Kaiser, Melissa (Shawn) Willis, Stephanie (Kellen) Bohn, Jonathan Kaiser, Matthew Kaiser, and Abby Kaiser; treasured great-grandfather of Eli Willis, Nora Bohn, and Luella Bohn.
Robert proudly and honorably served in the United States Army. He was dearly loved and will be greatly missed by all who knew him.