The first major engagement of the 2nd New Hampshire Regiment following their encampment at Valley Forge was on June 28, 1778, at the Battle of Monmouth Courthouse in New Jersey.
Isaac Wesson was likely one of the 5,000 men led by General Charles Lee against Britain’s General Clinton.
Following the battle, General Washington moved his troops to Camp North Castle in New York where Wesson was present on the muster roll. In September, Wesson was mustered at White Plains, New York and listed on the payroll as “sick absent.” By September 10, 1778, he was “in hospital.” Until his discharge on April 1, 1779, Wesson was repeatedly listed in the muster and pay rolls as “sick absent” at White Plains, New York, as his regiment moved about from camp to camp. The last payroll for March 1779 indicated that he was “Due ab. £20.”
Isaac Wesson never returned home from the war. In September 1782, his wife, Lucy Dean Wesson, petitioned the State of New Hampshire for his wages due. The petition stated that the “Petitioners Husband Isaac Wesson inlisted into the years service 1778 and was born upon the musterroll till the First of April 1779 and has not returned nor been hear of sense but by the best information is Dead…” Lucy Wesson had a family of small children and was granted four months’ pay the following month.