Our Hamilton Chapter has never closed down! School recognition and operation are two different things. Most schools didn't even officially recognize fraternities for the first 30-40 years of our existance. Our Union Chapter started as a local in 1833, and I stand corrected on the third. I thought our Michigan Chapter dated back to 1842, but 1846 is the correct date. In addition, I believe our Trinity chapter dated back that far (as a local), but I have to check on that. Our former Harvard Chapter, now known as the AD Club, dates back to 1837. Our former Dartmouth Chapter (of Animal House fame

, founded in 1842 as Tau Delta Theta, still exists as Alpha Delta local.
And that's just AD. Four other fraternities ( Kappa Alpha, Delta Phi, Sigma Phi, and Psi U) have chapters older than your chapter, some several. All from Baird's., 20th edition specifically. Lambda Iota, local at Vermont, dates back to 1836. Any questions??