I agree, impressive work!
a few questions/suggestions:
* as bernard_L (there was a url link here which no longer exists) using a more conventional format for the x-axis would be a good idea. At first sight, the values look like EVs. But that would mean that (looking at, e.g. the charts for PanF in FX39) an exposure range of 14 stops would correspond to a density range of only 1.2 ...I guess the steps are supposed to be half stops, but that'd make the numbers confusing. I suggest you go for either whole- or third-stop steps and use either logH values or EVs, and don't forget to clearly denote the unit (as you've been taught in school)
* it would be nice to see a representative of the Beutler family among the developers, such as Neofin (the only surviving one, I guess)
* You don't seem to include information on how the films were
exposed. If the dev times you're listing are supposed to serve as a starting point for other people's own tests, they're of rather limited use if they come without the EI that the exposures were based on. One may infer from the ISO specifications that come with your reference curves that your tests were conducted at box speed, but again, it's a little vague...
--Nils