Davidt Christoffelse and his wife and four children were slain on February 9, 1690 during the sacking and burning of Schenectady.
References in Albany Court Minutes
"Monsieur R. V. Rensselaer, plaintiff, against Davidt Christoffelssen, defendant." 
"David Christoffelse, being sworn, says that 14 days ago he had some grain ground and that it was good meal and that he baked white bread and biscuits with it and was well satisfied with it, but he says that he was not satisfied with the miller, because he did not grind in time and would not accommodate him when he needed the meal, but he has never made any complaint." 
"David Christoffelse, plaintiff, against Lambert Janse, defendant." 
↑ Pearson, Jonathan. Contributions for the genealogies of the descendants of the first settlers of the patent and city of Schenectady, from 1662 to 1800 (1873). page 36.
Davidts-2 and Christoffelssen-1 appear to represent the same person because: This is the oldest paternal ancestor in this chain in need of a merge into the patronymic NNS PPP. No tree conflicts. Thanks! Court records show that David used a patronymic.