Well, it may be a bit confusing to throw that question out there for you. So far, I haven't said much about the masses of all these particles. That's because the purpose of these pages is to enlighten, and listing the masses of all the matter particles provides no enlightenment whatsoever. The only pattern to the masses is that they tend to get larger as you move up and to the right in the table I gave you earlier. Other than that, they're pretty much random.
Nobody knows why there are three generations of matter particles.
In the past, observing patterns like this in the particle spectrum has indicated that the particles are made up of smaller particles. Maybe that's the case this time too, but so far there's no evidence for it. Somehow, nature has settled on three forces, with the properties I've described earlier. Again, nobody knows why. The standard model can accommodate all these masses, and as many generations as you like, and three of the four forces we observe, but it doesn't explain why we find what we find.