Mark Windle researched this group and 45 for his book. The info he gleaned from first hand sources puts Willie in the frame. In a separate strand, when I asked MT about the 45 I was very surprised that he was quite adamant that it wasn't him. I had also assumed it was him, it certainly sounds like him and at the time I thought Mike may just have forgotten about the session. When Mark's book came out that got me thinking. I guess the jury is still out. As we know the artists themselves can sometimes confuse the actual facts, especially when their catalogue of work is so vast and years before.
Regards,
Dave