@higheredmom Im addition to Lafayette and Bucknell, I believe that sophomore rush also exists at Dickinson (PA) and Union (NY) and I think that Franklin and Marshall may have had spring semester rush – you should double check because our visits were a few years ago (things may have changed and/or my memory might be a bit hazy). Some other schools we visited didn’t have Greek Life.
Apologies my comment that pretty much all LACs have sophomore rush was incorrect – all I can say is that sophomore rush certainly appeared to be the norm in the group of LACs with Greek Life that we visited with my D. But it was a limited sample to be sure.