▁the ▁only ▁one ▁of ▁G ates ' ▁white ▁ancest ors ▁for ▁whom ▁a ▁name ▁is ▁known . ▁This ▁discovery ▁was ▁featured ▁on ▁the ▁final ▁second ▁season ▁episode ▁of ▁Professor ▁G ates ' ▁television ▁series ▁F inding ▁Your ▁Ro ots ▁with ▁Henry ▁Louis ▁G ates , ▁Jr .. ▁He ▁visited ▁Philipp i ▁and ▁attended ▁a ▁" Her itage ▁Day " ▁gather ing ▁on ▁Ch est nut ▁R idge .) ▁ ▁In ▁addition ▁to ▁the ▁Mail ▁family , ▁Fin ley ' s ▁work ▁also ▁identified ▁a ▁number ▁of ▁other ▁CR P ▁families ▁that ▁can ▁trace ▁their ▁her itage ▁back ▁to ▁Revolution ary ▁War - era ▁mixed - race ▁for eb ears , ▁not ably ▁Sam ▁Nor ris ▁( 1 7 5 0 - 1 8 4 4 ), ▁Gustav us ▁D . ▁Cro ston ▁( 1 7 5 7 - ca . ▁ 1 8 4 5 ) ▁and ▁Henry ▁Dal ton ▁( 1 7 5 0 - 1 8 3 6 ), ▁as ▁well ▁as ▁others ▁arriv ing ▁in ▁the ▁mid - 1 9 th ▁century , ▁such ▁as ▁Jacob ▁Min erd ▁( 1 8 1 6 - 1 9 0 7 ). ▁The ▁descend ants ▁of ▁each ▁of ▁these ▁pro gen itors ▁fost ered ▁their ▁own ▁local ▁" race " ▁complete ▁with ▁unique ▁fol kl ore ▁and ▁origin ▁story . ▁ ▁D issent ing ▁views ▁ ▁D issent ing ▁view ▁# 1 : ▁No ▁black ▁her itage ▁B . V . ▁May h le ▁self - pub lished ▁a ▁family ▁history ▁entitled ▁The