Portraits of woman is 120 TMY-2, girl is 35mm TMY, man is 120 Delta 400 (cropped 645), and boy is 120 Tri-X 400.
That was enjoyable, thanks for posting the quiz, Thomas. I had the girl and the boy as Tri-X, so not quite right, either, though 35mm amongst MF was quite a trick.
In my prints, I can see the difference, in 4x5, especially between the older TMX, and TXT/320TXP, but only in smooth areas such as a plain sky. The grain appearance of TMX seems more geometrical when I peeping at a 12x16 print, while that of TXP seems more random. Having said that, I do not know if this is due to film, or, probably more likely, the way I have been processing it at the time. Bear in mind that I really only know HP5+ in LF, but I have been looking again at 320TXP recently. If Kodak film business remains, I might have a go at TMY some time. I have no idea why, I know it should be better to stick with one film, one dev, one xyz...