Thanks for the article Jeff. As a matter of fact there is supposedly buried treasure from Governor Wentworth buried somewhere between Wolfboro NH (where his estate is) and Portsmouth NH. That's a huge area but who knows. There are also tales of pirates burying treasure along the banks of the Piscatqua river in Portsmouth in the 1600's and then forgetting where exactly it was located. Lots of great history in NH
I am tracking this route myself, I think he left portsmouth, taking the old dover rd (still exists), then following rt 108 thru rochester, rt 11 west to 153, farmington , milton, and the old kings road to Wolfeboro.
I believe these are the 'best pioneer roads' as shown in Document.
let me know if this helps anyone!
below a pic of the mansion in Portsmouth HH