 His second wife, Winifred Kimball Hudnut (1871 – 1957), was the mother of Natacha Rambova (née Winifred Shaugnessy).Hudnut was her fourth husband.Hudnut was a member of several professional organizations including the American Pharmaceutical Association, the Manufacturing Perfumers' Association of the United States of which he had been variously, chairman, vice-president and treasurer, the American Geographical Society, the Metropolitan Museum and the Republican Club of New York.