My understanding is that John Van DeGrasse aka John van Salee de Grasse is descended from the van Salle family first settlers of Dutch New Amdsterdam now New York City. I have been researching the finally members that will connect John Van Surley DeGrasse aka John van Salee de Grasse with the family line that goes back to a famous pirate and governor of the City/State Sale' now part of Rabat Morocco.
John Van Surley DeGrasse aka John van Salee de Grasse Wiki page: https://en.wikipedia.org/wiki/John_van_Salee_de_Grasse
Descended From:
Abraham Janszoon van Salee: Abraham Janszoon van Salee
Anthony Janszoon van Salee: Anthony Janszoon van Salee
Jan Janszoon van Haarlem: Jan Janszoon van Haarlem, aka Murat Reis the Younger
Van Sales Family background information:
PBS Frontline: https://www.pbs.org/wgbh/pages/frontline/shows/secret/famous/vansal...
Anthony Van Salee Wiki page: https://en.wikipedia.org/wiki/Anthony_Janszoon_van_Salee
Roots Web: http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?db=dangamber&id...