On St. Patrick’s Day, everyone is Irish. Or so the saying goes. In Chicago, where Irish-Americans make up the largest single ethnic group, many in the community continue to celebrate their heritage by downplaying the drunken revelry of St. Patty’s Day and highlighting important Irish contributions to Western culture like prose, poetry, music, and storytelling. Megon McDonough and Susan O’Halloran give us a bit of the latter two categories-a preview of their show “Pot of Gold: Irish Stories and Songs.“