Tamar Fox was born Hellena Hocherman in Poland in 1926 and made Aliya with her mother before World War II. The mother did not assimilate well in Israel and both returned to Europe on the eve of World War II. Tamar was imprisoned in a concentration camp from 1941 to 1945. After her release, she made Aliya again and joined the Lehi underground. Tamar joined the Lehi underground, underwent a training course in Ra’anana and served as a coordinator for the courses. Tamar was the one who informed David Shomron of the murder of the children of Ra’anana. Tamar served as a nurse and medic and was active in the Medical Unit, treating the wounded in Lehi. During Geula Cohen’s time in the hospital before her escape, Tamar served as contact and sent messages to and from Geula Cohen. After the declaration of independence of Israel, Tamar enlisted in the 8th Brigade and served as a nurse. At the time of her enlistment in the IDF, Hellena Hocherman registered with her former name. In 1955, she emigrated to the United States, where she died.