`There are tons of references to Wesleyan University (CT).  In one episode Ted refers to some music group from college being the most renowned of all of the other such groups from ``the Little Ivies``, a group among which Wesleyan University is counted but Ohio Wesleyan is not.  Lily, Marshall, and Ted are all seen at different points wearing grey T-shirts with ``WESLEYAN`` written in maroon (Ohio Wesleyan uses a crimson red).  In ``Arrivederci, Fiero``, Marshall drops Ted off at his home in Ohio, and the drive there takes a very long time, indicating that they drove from Connecticut.  In ``How I Met Everyone Else``, a Connecticut Wesleyan dorm, Hewitt, is referenced.  There's also the fact that the creators both went to the one in Connecticut.  Based on this evidence, the Ohio Wesleyan diploma in Marshall's office seems like an exception than the norm.  `