On the afternoon of 25 September 1944, William Harrison, a US soldier stationed in Northern Ireland, visited the cottage of the Wylie family in Killycolpy, County Tyrone, and offered to buy treats for the children.
He had visited before and was, if not a friend, at least known to the family. Mary Wylie let him take her seven-year-old daughter, Patricia, better known as Patsy, across the fields to the shops.
