Olga Levy Drucker was born to a Jewish family in Germany. Her father was a well-to-do children's book publisher. After the rise of the Nazi regime to power when she was a small child, she experienced the mounting persecution of Jews. In 1939, when Olga was 11 years old, her mother arranged for her to be one of 10,000 Jewish children sent in the "Kindertransport" to Britain, where her brother Hans was already in school.
The separation was traumatic and she spoke virtually no English at the time. She lived with a series of English hosts, including in a dingy, poverty-stricken flat; a luxurious house in which she was virtually ignored; and a boarding school.
In 1945, she was able to make her way to the USA and be reunited with her parents and brother in New York. She published a memoir of her experiences entitled Kindertransport in 1995.