I took a look at the comm a few times, but hadn't thought of actually joining, somehow.

That's tough to answer. None of my books speak of it either... I suppose that Saint-Just met Robespierre at the beginnings of the Convention, and that he spoke with him from the very start. As for Desmoulins, I really can't tell. Since they were both living in Picardie, Saint-Just in Aisne, Desmoulins in Oise, they could have met if not by themselves, through their families, perhaps. Or maybe they met in Paris. I don't know much about Desmoulins' pre-revolutionary life or early revolutionary life, but I suppose he already had a sort of newspaper at the start of the Revolution -- Saint-Just refers to it in a letter he wrote, apparently, to Desmoulins. So it would mean that Saint-Just came to read the newspaper and may have decided to contact Desmoulins, etc. That's really all I can think of... yet another historical mystery.

Also, it's the third time I write this reply, because LJ is being a piece of annoying crap and eats it all the time, so I'm starting to be tired of writing the same stuff. I hope it works this time. >.>