Mark David Valerio Obituary
Mark David Valerio of Prosperity, Pennsylvania passed away on August 19, 2026. Mark, born on July 21, 1953, shared life alongside family, friends, and others. You can send your sympathy in the guestbook provided and share it with the family. You may also light a candle in honor of Mark David Valerio or send a beautiful flower arrangement to the funeral service.
Mark will be remembered for the impact he had on the lives of those around him. Friends, family, and colleagues will cherish their memories and the time shared. Those who knew Mark will remember moments of kindness, warmth, and presence. Though words cannot fully capture his life, the legacy of connections and experiences remains. Mark’s absence will be deeply felt by those who valued his companionship.
He was predeceased by: his parents, Elsie Valerio and David Valerio of Penn Hills. He is survived by: his wife Marianne (Tierney); his son Michael (Leslie); and his granddaughters, Isabella and Alessia of Ocean City, MD.. He is also survived by his siblings, 6 nephews, and 2 nieces.
