Mary Petrich could describe the Maxo Vanka murals in St. Nicholas Croatian Catholic Church in Millvale, all 25 of them, in detail, even if her eyes were covered. As we sit in her apartment in Lawrenceville, she virtually places us in the church. "On the right side," she says, with a graceful gesture of her arm, "is the mother weeping for her son killed in the mines. And just across from it," with a sweep of her arm in the other direction, "is the mother weeping for her son lost to war." Each of the 25 murals is painted in her mind's eye.