Six ground-level, (three and four bay) swing beam, frame barns revealed the following construction dates: 1794, 1794, 1803, 1806, 18.Note: a 7th ground level barn dated 1787 was eliminated from the conclusion because the date was derived solely from three samples taken from floor joists.
This location facilitated easterly migration from Bucks County, Pennsylvania.The barns chosen for the study were considered to be among the oldest remaining barns of their type in the township.An approximate construction date for each barn (based on the style of framing, presence of hewn and/or sawn timbers, the types of nails used in original materials and various other construction details) was determined prior to the study.Two major barn types remain in the township: The results of the dendrochrolology study are both exciting and disappointing at the same time; some questions were answered but others remain undetermined.The results of the dendro study indicate that all of the dated barns, were built after the associated farm had been sold and suggest that these barns were built as an improvement (or as an addition) to the earlier tenant barns.
Note: The barn that was eliminated from the conclusion is located on a farm which did not sell until 1813, but since it post dates the Revolutionary War was likely built by the tenant (not the landowner) as an improvement to an earlier barn.
We know that the tenant barns were frame (not log or stone) and that they were built by the British landowners for the tenants from an “account of the expenses of building a barn on the place leased to John Thomson” which includes the purchase of “2000 feet of weatherboards,” “15 days work ….
The Historic Preservation Commission of Holland Township, New Jersey, hired Oxford Tree-Ring Laboratory to date nine barns with dendrochrolology.
This study has been funded in part with grants provided by the New Jersey Historical Commission.
It was hoped that a study of this kind would answer questions related to ethnic settlement patterns.
Holland Township borders the Delaware River and Upper Bucks County Pennsylvania to the west and south, the Musconetcong River and Warren County to the north and Alexandria Township and Milford in Hunterdon to the south and east.