Keith (Pat) Hassey, 73, passed away on October 30, 2017 in Casper Wyoming. He was born on October 13, 1944 in Sheridan, Wyoming. Keith earned his Bachelor's degree in History and become a school teacher. He retired from Denver Public Schools in 1997. He enjoyed anything that was history related. He was an avid Morgan Horseman. Keith served in the United States Air Force from 1968 until 1973. He is survived by his son, Brian Hassey of Casper, Wyoming; daughter, Christy (Aaron) Sheedy; and granddaughter, Caitlin Sheedy all of Lakewood, Colorado. Keith is preceded in death by his mother, Lillian Hassey and father, Andrew Hassey both of Sheridan, Wyoming. Services are being planned for this spring. .