In the constellation of collegiate societies—fraternities, sororities, eating clubs, finals clubs, and the like—few are more exclusive, and WASPy, as St. Anthony Hall, or St. A's as it is commonly known. Founded at Columbia University in 1847, today the organization has merely nine chapters, six of which are co-ed and three of which are all-male. At the university we attended, the St. A's chapter house was an imposing Tudor brick presence in the center of campus, with leaded-glass windows, a large side yard, and a stoop where the blond members would sit outside on nice days, drinking beer out of plastic cups. (They were still a frat, after all.) So perhaps it's not surprising that Tinsley Mortimer would've been a member.