It's One O'Clock and Here Is Mary Margaret McBrideOne of the most beloved radio show hosts of the 1940s and 1950s, Mary Margaret McBride (18991976) regularly attracted between six and eight million listeners to her daily one o'clock broadcast. During her twenty years on the air she interviewed tens of thousands of people, from President Harry Truman and Frank Lloyd Wright to Rachel Carson and Zora Neale Hurston. This is her story. Five decades after their broadcast, her shows remain remarkably fresh