Known as the “Limping Lady,” Hall became a pioneer in the intelligence industry. She posed as a milkmaid, charwoman, and farmworker to move through rural areas unnoticed. Hall sometimes pretended to be a deaf-mute. One of her most famous disguises involved dressing as a frail older woman, complete with a hunched posture, shabby clothes, and a cane. She darkened her hair and stained her teeth to complete the look. She always evaded the Gestapo.