His siblings were: Anna Eleanor Roosevelt (1906-1975), James Roosevelt II (1907-1991), Franklin Roosevelt (1909-1909), a brother of the same name had died in infancy in November 1909, having lived only several months, Elliott Roosevelt (1910-1990), and John Aspinwall Roosevelt II (1916-1981) [REF].
As a young man in 1936, he contracted a streptococcal throat infection and developed life-threatening complications.