Just 2 obscure, I think. Wiese, Plum, Mitchell, Samuelsons of course well known. Saw an Oregon and a Michigan State game quite recently, perhaps why those 2 don't strike me as being obscure, either.
Belmont and St. Francis - you've got me there. Although St. Francis was at one time quite good at their level, having a run as a 1 and done NCAA team as conference winner some time back. RU had them in the tourney 1st round years ago. Fell on hard times.
To be honest, though, leaders in a lot of statistical categories are often from odd schools and perhaps not much good at anything else, hence, not well known. And I think 3 point shooting is often one of those categories. But this year, looks like some fine players are excellent 3 point shooters.