WRT Christopher Pennock, the wiki biography says he came to Pennsylania in 1684. In Irma Corcoran, Thomas Holme, 1624-1695, Surveyor General of Pennsylvania, Memoirs of the American Philosophical Society, Held at Philadelphia For Promoting Useful Knowledge, Volume 200, American Philosophical Society, Philadelphia, 1992, the author quotes several instances in which Thomas Holme meets with Christopher Pennock. The dates noted are "1 monthe 1683 [March 1682/83]" on pp 138-139 and "16 March 1682/83" on p 176.
Christopher's wiki biography also states, "Almost all Pennocks in the United States can trace their ancestry back to Christopher . . ." I know a number of Pennocks who claim to descend from Pennocks who settled in New England about the same time that Christopher settled in Pennsylvania. Some of these people have never heard of Christopher. I suspect there is a link back in England at some previous time, but I haven’t seen any documentation of one.
WRT to the wiki biography of Christopher's grandson William Pennock (Christopher -> Joseph -> William), the section "Research Notes" mentions that Massey's book The Pennocks of Primitive Hall says William's son William (Jr) died on 10th mo 3, 1763, but that other sources claim William Jr emigrated with his family to Ohio around 1808.
Massey made an error. The date he quotes for the death of William Jr is actually the date that William Sr died. I have seen a presumed death date for William Jr of 15 May 1816 in Ohio.