John Joseph Cossu Sr. Obituary
We announce the death of John Joseph Cossu Sr. of Washington, Pennsylvania, who passed away on June 22, 2026, at the age of 78. John Joseph will be remembered by family members, friends, and others whose lives were connected in meaningful ways. Leave a sympathy message to the family on the memorial page of John Joseph Cossu Sr. to pay them a last tribute.
He was predeceased by: his parents, Sammy Cossu and Mary Jane Carpenter Mancina; his stepfather Frank Mancina; and his stepbrother Frank Muncie. He is survived by: his spouse Shirley Ann Burk Cossu; his children, John Joseph Cossu Jr. (Jamie), Joni R. Welsh (Scott) and Maryanne MacFarlane (Rick); his sister Patricia Georgetti; his stepsister Mary Burk; and his grandchildren, John Thurman Cossu, Leah Katherine Cossu, Michael Hildebrand (Rachel), Amber Gibson (Andrew), Jeremy Hildebrand (Holly), Bradley Walker, Brant Walker, Jordan MacFarlane (Kelsey), Morgan MacFarlane and Lillyann Earley. He is also survived by seven great-grandchildren.
