This is extremely valuable information. Who are these gentlemen?
Well, to be fair, the other info was extremely valuable also. Or do you not know the backgrounds of the named aikido teachers in my post?
Also, from what I understand, there are other people who trained when Ueshiba was around who also have been to IP/aiki workshops. Not just limited to the two I know.
As to those two ... information from both, as far as I know, was done privately. I've met/trained with both. One was second hand info. The other direct. But, you're more than welcome to disregard due to anonymous status.