To most of his friends and family, including his sister Gertrude, who was born in 1903, he was known simply as "Rabi", which was pronounced "Robby".
1903’te doğan kız kardeşi Gertrude dahil olmak üzere birçok arkadaşına ve ailesine göre, o basitçe Robby olarak telaffuz edilen Rabiydi.