Longtime Gresham resident, Donald Collier, died at his home on Thursday, November 19, 2020. He was 92. A private funeral service was held. Donald Glenn Collier was born May 11, 1928 in Janesville, Wisconsin to Glenn and Ethel (Heiden) Collier. In 1982, he married Jeannie Sullivan. They made their home in Gresham while he taught at Mt. Hood Community College retiring after 18 years in 1988. Survivors include his wife, 6 children, 2 step children, several grandchildren and 1 great grandchild.