Aha... I know they were at least open into the 60s...
This is silly, but I ask because a coworker claims he dated a Phi Mu from Rollins - and as far as I knew, that chapter has been closed for some time... admittedly, I don't know that much about Greek life at Rollins (even though I've lived in the area for a few years!) This guy has been lying for months about various things, so I'm not sure this Rollins Phi Mu girlfriend thing adds up either... and I aim to find out!