A nice recounting of the "discovery" by Goudsmit: http://www.lorentz.leidenuniv.nl/history/spin/goudsmit.html

(I use the quotes because he discusses the role of luck in scientific discovery, and the question of who should get credit -- the first person to "guess" a truth that is ultimately proven, or the first person to understand it?)

So the students who postulated spin were never rewarded. Then there's this:

"Ironically, spin helped clinch confirmation of Pauli's exclusion principle of 1925, for which Pauli won the Nobel Prize in 1945."