David Alexander Grelle, 69, of Dallas passed away June 23, 2022. He was born Oct. 14, 1952, and grew up in Boulder, Colo., where he graduated high school in 1971.
David attended the University of Northern Colorado, earning his bachelor’s degree in education. He later earned both a master’s and Ed.D.
in education. David taught school in Colorado, Texas and Florida, most recently at the Parish Episcopal School in Dallas as their special needs coordinator.
His teaching specialty evolved from elementary to various science programs and finally special education. Among his positions, he served as the Region 10 science and information technology specialist, instructing teachers on new ways to teach science, a science specialist at the Texas Can Academy and an elementary science teacher with the Dallas ISD.