Derek McCulloch, or 'Uncle Mac' of BBC Children's Hour, interviewing a group of youngsters chosen for a surprise holiday to the Alps, London, June 13th 1939. (Photo by George W. Hales/Fox Photos/Getty Images)
Derek McCulloch, or 'Uncle Mac' of BBC Children's Hour, interviewing a group of youngsters chosen for a surprise holiday to the Alps, London, June 13th 1939. (Photo by George W. Hales/Fox Photos/Getty Images)