Here’s what it looks like, if you include each of the above-mentioned colleges with the definite article in front of all their names (to filter out other “Wesleyans”
https://books.google.com/ngrams/graph?content=the+Brandeis+University%2Cthe+Swarthmore+College%2Cthe+Oberlin+College%2Cthe+Haverford+College%2Cthe+Davidson+College%2Cthe+Wesleyan+University%2Cthe+Amherst+College%2Cthe+Williams+College%2Cthe+Pomona+College%2Cthe+Bowdoin+College%2Cthe+Carleton+College&year_start=1945&year_end=2008&corpus=0&smoothing=3&share=&direct_url=t1%3B%2Cthe%20Brandeis%20University%3B%2Cc0%3B.t1%3B%2Cthe%20Swarthmore%20College%3B%2Cc0%3B.t1%3B%2Cthe%20Oberlin%20College%3B%2Cc0%3B.t1%3B%2Cthe%20Haverford%20College%3B%2Cc0%3B.t1%3B%2Cthe%20Davidson%20College%3B%2Cc0%3B.t1%3B%2Cthe%20Wesleyan%20University%3B%2Cc0%3B.t1%3B%2Cthe%20Amherst%20College%3B%2Cc0%3B.t1%3B%2Cthe%20Williams%20College%3B%2Cc0%3B.t1%3B%2Cthe%20Pomona%20College%3B%2Cc0%3B.t1%3B%2Cthe%20Bowdoin%20College%3B%2Cc0%3B.t1%3B%2Cthe%20Carleton%20College%3B%2Cc0
Considering Brandeis was less than twenty years old by the mid-sixties, it did extraordinarily well.