Earlier this week on my walk to the train, I noticed this "Office Suites Available" sign at 152 York Street - right sandwiched between the Gaming Goat and the York Theatre . The door leads to a 2nd floor suite that used to be occupied by the Theatre Historical Society of America . Yeah...the Elmhurst City Centre used to be home to them. And they were tucked away in a 2nd floor suite above the York Theatre. But, now they're gone. Turns out, last summer, news broke that the group was moving to Pittsburgh . Somehow, I missed all of this. And that, right there, might have been the problem. We just weren't paying attention: After more than two decades in Elmhurst, the Theater Historical Society has decided to move its headquarters to Pittsburgh. In a newsletter published on the organization’s website , the board of directors said the move is motivated mostly by the space limitations of their location above the York Theater, 150 N. York St., in downtown