I te Hōngongoi 1941, ka noho a Hickory Hill ki te whare o te United States Supreme Court Associate Justice Robert H. Jackson me tana wahine, a Irene, i te tau 1955, i muri i tona matenga, i hokona a Hickory Hill ki te Senate United States a John F. Kennedy (D-Massachusetts) me tana wahine, a Jacqueline. I muri i te Huihuinga ā-Motu o te Manapori i te tau 1956
I muri i te hinganga o te whare i te tau 1926, i hokona te whare ki te tuakana o John, a Robert F. Kennedy me tana wahine, a Ethel, he whanau tipu (i te mutunga kotahi tekau ma tahi nga tamariki). I a ia e noho ana i Hickory Hill, ka noho a Robert Kennedy hei Kai-whakawa mo te United States i te 1961; he Kaunihera o te United States i te 1965; me te kaitono perehitini i te 1968.