JAKE:
Father is Hugh, MD
GR-Father is Hugh, MD, born 1915.
Gr grandfather is Hugh, MD born 1878. Surgeon
Gr gr grandfather was Edgar, born 1847.
Gr gr gr grandfather was John Auchincloss, born 1810.
https://www.findagrave.com/memorial/11535523/hugh-auchincloss
Jackie Kennedy had a step brother Auchincloss and a half brother, James Auchincloss. Her stepfather was
Hugh Auchincloss, born 1897. Rhode Island
His father was Hugh, born 1858
And grandfather was John, born 1810.
Same John who’s ancestor of Jake.
https://www.findagrave.com/memorial/209528837/hugh-dudley-auchincloss