I am attempting my first complete restoration on a 68 coronet. Can anybody tell me if it is necessary to pull the windshield in order to remove the dash?

You're lucky. You shouldn't have to, but if this was my car, I would pull the windshield anyways for my own reasons, but that's just me.

We took the dash out of my '71 Challenger without taking the windshield out. The windshield came out anyways, but just not before the dash did...