He was born Oct. 20, 1949, in Hayti, Mo., to Rex and Mabel Phillips Keller. He and Grace Moll were married March 31, 1979, at Immanuel Lutheran Church in Tilsit, Mo. Their union was blessed with two wonderful children, Brian and Laura.
Don was a 1967 graduate of Richland High School near Dexter, Mo. He earned a Bachelor of Science in electrical engineering from the University of Missouri School of Mines in Rolla, Mo., and made his career as a computer software architect. His employment included Missouri-Pacific Railroad, Tandem Computers, Compaq Computers, and currently Hewlett Packard.
Don was "all about" his children, their school assignments and projects, science fairs, and church activities. He especially enjoyed their computer projects, and loved that he could help them excel in his area of expertise.
He had a special appreciation of nature, trees, and woodworking, and is affectionately remembered as the "eternal optimist" of the family, always willing to be positive, and challenged others to do the same. He was anxiously awaiting the arrival of his first grandchild, a baby girl, in February.
The Kellers are members of Hanover Lutheran Church in Cape Girardeau.
Don's surviving family includes his beloved wife of nearly 33 years, Grace of Jackson; two children, Brian (Katie) Keller of the Chicago area, Laura Keller of Cape Girardeau; a sister, Shirley (Roger) Triplett of Dexter; two brothers, Rex (Donna) Keller, Jr. of Dexter, and Kenneth (Marsha) Keller of Dexter; his father-in-law, Edgar (the late Helen) Moll of Jackson, a brother-in-law, Glenn (Karen) Moll of Jasper, Mo., and a sister-in-law, Wanda (Mark) Aufdenberg of Gordonville.
He was preceded in death by his parents.
Visitation will be held Thursday, Jan. 26, from 5 to 7 p.m. at the chapel of McCombs Funeral Home and Cremation Center in Jackson.
Funeral service will be Friday, Jan. 27, at 10 a.m. at the funeral home, with the Rev. Anthony Kobak officiating.
Interment will follow in Hanover Lutheran Cemetery in Cape Girardeau.
Memorials are suggested to Hanover Lutheran Church or the Leukemia & Lymphoma Society.