After 50 years, 'Vibration Cooking' still resonates

The three-story rowhouse on Erdman Street where Vertamae Smart-Grosvenor's family lived doesn't exist anymore. It's been razed and replaced. The Smarts had been making a new life there, among the hundreds of thousands of Southerners who moved to Philadelphia during the Great Migration. "Whenever Daddy went crabbing it was a real treat.