Robert Hazen Collison Sr., 80, of Duluth, passed away on Monday, July 3, 2017, at Essentia Health Miller Dwan. Robert worked as a Radar Technician in the Air Force for 22 years, with the rank Master Sergeant, then worked at the FAA for 25 years. Robert is survived by his wife, Janice; children, Leigh Ann (John) Gomes, Robert Hazen Collison Jr., Richard L. Elcombe, Dawn Elcombe, David Elcombe, Patrick Elcombe, and Robin (Jason) Garding; 9 granchildren; and 1 great-grandchild. Private family graveside service to be held at a later date.