The generally accepted position on the Austrian school was that, of course, Menger was the founder,
Eugen von Boehm-Bawerk was his most important student,
Friedrich von Wieser, putting him to the side as the brother-in-law of Boehm-Bawerk,
contributed a little bit but not a great deal,
and then Mises Salerno, of course, was the great successor of Boehm-Bawerk.