She worked for PPG Industries for 31 years. She was a member of St. Paul Catholic Church.
Mary Ann is survived by her husband of 30 years, John E. Threlkeld, her step-children, Heather Roselli and husband Dr. Eric Roselli of Rocky River, OH; Gregg Threlkeld and wife Sandy of Canonsburg, PA; her brothers, Joseph Lesko and wife Virginia and John Lesko and wife Agnes, all of Pittsburgh, PA; a step-sister, Anita Mattison and husband Robert of San Rafael, CA; six step-grandchildren, Siena, Lilliana and Mateo Roselli of Rocky River, OH; Nolan, Sonny and Jesse Threlkeld of Canonsburg, PA; and several nieces and nephews.
A memorial service will be held at a later date in Pittsburgh.
