Helen Tradusa "Helenka" Adamowska Pantaleoni (November 22, 1900 – January 5, 1987) was an American silent film actress and humanitarian. She was the founding director of the U.S. Committee for UNICEF, a role that she held for 25 years. Her granddaughter is American actress Téa Leoni. Family and career Pantaleoni was the daughter of Polish musicians Józef (July 4, 1862 – May 8, 1930) and Antonina (née Szumowska) Adamowski (born February 22, 1868, Lublin, Poland – died August 16, 1938, Rumson, New Jersey). After studying piano in Poland Antonina became the only known female pupil of Ignacy Jan Paderewski in Paris between 1890 and 1895, when she left for the United States. Józef was a cellist and a member of the Boston Symphony Orchestra. Antonina, Józef, and Józef's brother Tymoteusz (aka Timothee), made up the Adamowski Trio. After touring Europe and the United States her parents settled in Brookline, Massachusetts, where Helenka was born. She attended Miss Winsor's School in Boston. She studied dramatics and appeared in plays presented by the Junior League and the Vincent Club. "In 1917, on the occasion of Paderewski's presence in Boston in connection with aid for war victims, she appeared in a specially written play entitled "The Spirit of Poland," which was given at Jordan Hall in Boston. In the 1920s, she appeared in silent films as well as on Broadway. She subsequently became head of the Children's Theatre Department of the Junior League of New York. She married Guido Pantaleoni, Jr., in 1935. Guido, a New York lawyer, was a widower with three children (Guido, Nina, and Hewitt). He was a graduate of Milton Academy, Harvard University and Harvard Law School. Guido was a nephew of Italian economist and politician Maffeo Pantaleoni. He and Helenka had two sons, Anthony and Michael. In 1935, Guido and C. Frank Reavis, Jr., founded the New York law firm Reavis & Pantaleoni. Guido volunteered for service during World War II. As a Lieutenant Colonel attached to the Office of Strategic Services he was killed in action in Sicily in August 1943, leaving Helenka with five children to raise. Guido Pantaleoni died behind enemy lines while serving in the special forces. He is memorialized in the Sicily-Rome American Cemetery. Helenka Pantaleoni founded the Paderewski Fund for Polish Relief in 1941. She served the fundraising arm of the American Red Cross during World War II. After the war, she