I did this just to satisfy my curiosity. Shortly after the Mathis “Paul McCartney is Twins” paper came out, a reader approached him with the video below:
The man there claims to be John Halliday, caretaker of the childhood home of the McCartney family. Passersby take more than one look, as he looks an awful lot like Paul.
I am forced, however, to do screen grabs of this grainy film to make a facial comparison. Nonetheless I did my best, and am 94% sure that this man is Paul McCartney, the retired McCartney, living a quiet life in Liverpool while his brother is out setting the world on fire with music. Sort of.