Of Rockville, MD passed away on October 4, 2018. Born on January 18, 1940, in Waynesburg, PA he was the son of William and Mary Keller. He is survived by his wife of 43 years, Elizabeth, his son and daughter-in-law, David and Beth in Point of Rocks, MD, grandchildren, Destiny and Brecken, and great-grandson, Hunter. With a bachelor's degree from Waynesburg University and master's from Bowling Green University, he was retired from Montgomery County Public Schools having taught earth science at Walt Whitman and Walter Johnson High Schools. He was a long-time member of The National Presbyterian Church. Service and burial will be at 11 a.m. Tuesday, October 16 at Mount Olivet Cemetery, 515 South Market St., Frederick, MD. Memorial donations may be made to the American Heart Association.