The band of precipitation that covers Southern Ontario and upstate NY also includes NB and portions of Pennsylvania. Isotope levels for both sticks match studies completed on Elm & Maple taken from Southern Ontario / upstate NY. Due to Dutch Elm Disease there are limited isotopic studies in adjacent regions. Further studies would be required on the vegetation in these surrounding regions to better localize potential wood origins.

https://familysearch.org/wiki/en/New_Jersey_Emigration_and_Immigration

Germans. The first German Palatines to settle in Bergen County arrived in New York in 1710. Between 1714 and 1750, German Lutherans followed the Raritan River through Monmouth and Somerset counties into northeastern Hunterdon County. A few of the Germans who later arrived at Philadelphia in the 1720s and 1730s crossed over to New Jersey. Those that did went to southern Hunterdon, Morris, and Sussex counties. For information about early German families, see: Chambers, Theodore Frelinghuysen. The Early Germans of New Jersey: Their History, Churches, and Genealogies. 1895, reprint ed. Baltimore, Maryland: Genealogical Publishing, 1969. FHL book 974.9 F2gc 1969; film 16514 Digital version at Internet Archive.

Other books with information on German families in New Jersey are:

Jones, Henry Z., Jr. More Palatine Families: Some Immigrants to the Middle Colonies 1717-1776 and their European Origins. Universal City, California: H. Z. Jones, Jr., 1991 (Family History Library book 973 W2jo.) The first section is entitled, The Palatine Families of New York & New Jersey. At various libraries (WorldCat)
Jones, Henry Z., Jr.The Palatine Families of New York: A Study of the German Immigrants who arrived in Colonial New York in 1710. Universal City, California: H.Z. Jones, Jr., 1985 (Family History Library book 974.7 D2j, vols. 1-2.) Many of the families who first settled in New York later migrated to New Jersey. At various libraries (WorldCat)

Distance from New Jersey to Pennsylvania is 268 kilometers. This air travel distance is equal to 167 miles. The air travel (bird fly) shortest distance between New Jersey and Pennsylvania is 268 km= 167 miles.

https://www.loc.gov/item/2004633785/ A new map of Virginia, Maryland, and the improved parts of Pennsylvania & New Jersey.

https://www.loc.gov/item/gm71000679/ The course of Delaware River from Philadelphia to Chester, exhibiting the several works erected by the rebels to defend its passage, with the attacks made upon them by His Majesty’s land & sea forces.

https://www.loc.gov/item/2002620227/ An accurate plan of the country between New York and Philadelphia : with the dispositions of the forces.