Jannetie was a Dutch-born (born 1633) settler in New Netherland (arrived 1643) and the wife of Jacob Janse Schermerhorn (married 1650). Her name is variously recorded as Jannetie Egmont, Jannetie Van Voorhout, Jannetie Van Vourhoudt, Jannetje Van Egmont, Jannetje Egmont Van Voorhout, and other variant spellings. I have found 5 Wikitree profiles for her: Egmont-2, Van_Egmont-5, Van_Voorhoudt-1, VanVoorhoudt-1, and VanVoorhoudt-2. Her father is in Wikitree as Van_Egmont-6 and Van_Voorhoudt-2; his name is reportedly documented as Cornelise Segertse Van Egmont in 1643 and as Cornelis Segersen Van Voorhout in 1662. Egmont may have been a family name and Voorhout may be the place he was most recently from. One of Jannetje's brothers signed his name Cornelis Cornelise Van Voorhout, another went by Claes Cornelise Egmont, and a third brother apparently used the surname Segers.
It would be very nice to be able to merge Jannetje's multiple profiles (also the multiple profiles for her father), but that requires a decision on a surname. Is there a standard logic to be followed here?