`Just got back from Falcon Ridge and had to share on this thread. Robbie O'Connell told me he learned this song from Tommy just before it was released, while Tommy was staying with him in the states. Tommy wrote the song with the real names, Scott & McDonald, and locations and that's the version he taught Robbie.
Apparently, when the album was released, the families took offense to the names being used and the album was recalled. Tommy recorded it again with fictional names and it was rereleased.
It certainly accounts for the confusion.
Jack Murray