After Sir Henry Clinton had taken possession of Charleston, the 42nd and light infantry were ordered to Monck's Corner as a foraging party, and, returning on the 2nd, they embarked June 4th for New York, along with the Grenadiers and Hessians. After being stationed for a time on Staten Island, Valentine's Hill, and other stations in New York, went into winter quarters in the city. About this time one hundred recruits were received from Scotland, all young men, in the full vigor of health, and ready for immediate service. From this period, as the regiment was not engaged in any active service during the war, the changes in encampments are too trifling to require notice.
On April 28, 1782, Major Graham succeeded to the lieutenant-colonelcy of the Royal Highland Regiment, and Captain Walter Home of the fusileers became major.
While the regiment was stationed at Paulus Hook several of the men deserted to the Americans. This unprecedented and unlooked for event occasioned much surprise and various causes were ascribed for it; but the prevalent opinion was that the men had received from the 26th regiment, and who had been made prisoners at Saratoga, had been promised lands and other indulgences while prisoners to the Americans. One of these deserters, a man named Anderson, was soon afterwards taken, tried by court-martial, and shot. This was the first instance of an execution in the regiment since the mutiny of 1743. The regiment remained at Paulus Hook till the conclusion of the war, when the establishment was reduced to eight companies of fifty men each. The officers of the ninth and tenth companies were not put on half-pay, but kept as supernumeraries to fill up vacancies as they occurred in the regiment. A number of the men were discharged at their own request, and their places supplied by those who wished to remain in the country, instead of going home with their regiments. These were taken from Fraser's and Macdonald's Highlanders, and from the Edinburgh and duke of Hamilton's regiments.
The 42nd left New York for Halifax, Nova Scotia, on October 22, 1783, where they remained till the year 1786, when the battalion embarked and sailed for Cape Breton, two companies being detached to the island of St. John. In the month of August, 1789, the regiment embarked for England, and landed in Portsmouth in October. In May, 1790, they arrived in Glasgow.
During the American Revolutionary War the loss of the Royal Highlanders was as follows:
| Killed | Wounded | |||||||
| Officers | Serjeants | Drummers and Rank and File | Officers | Serjeants | Drummers and Rank and File | |||
| 1776, | August 22nd and 27th, Long Island, including the battle of Brooklyn | ... | ... | 5 | 1 | 1 | 19 | |
| September 16th, York Island Supporting Light Infantry | 1 | 1 | 3 | 3 | 3 | 47 | ||
| November 16th, Attack on Fort Washington | ... | 1 | 10 | 3 | 4 | 66 | ||
| December 22nd, At Black Horse, on the Delaware | ... | ... | 1 | ... | 1 | 6 | ||
| 1777, | February 13th, At Amboy, Grenadier Company | ... | ... | 3 | ... | 3 | 17 | |
| May 10th, Piscataqua, Jerseys | ... | 3 | 9 | 2 | 3 | 30 | ||
| September 11th, Battle of Brandywine | ... | ... | 6 | ... | 1 | 15 | ||
| October 5th, Battle of Germantown, the light company | ... | 1 | ... | ... | ... | 4 | ||
| 1778, | March 22nd, Foraging parties, Jerseys | ... | ... | ... | ... | ... | 4 | |
| June 28th, Battle of Monmouth, Jerseys | ... | 2 | 20 | 1 | 1 | 17 | ||
| 1779, | February 26th, Elizabethtown, Jerseys | ... | ... | ... | ... | ... | 9 | |
| 1780, | April and May to 12th, Siege of Charleston | 1 | ... | 12 | 1 | ... | 14 | |
| March 16th, Detachment sent to forage from New York to the Jerseys | ... | ... | ... | 1 | ... | 3 | ||
| 1781, | September and October. Yorktown, in Virginia, light company | ... | 1 | 5 | ... | ... | 6 | |
| Total | 2 | 9 | 74 | 12 | 17 | 257 | ||
FRASER'S HIGHLANDERS.
The breaking out of hostilities in America in 1775 determined the English government to revive Fraser's Highlanders. Although disinherited of his estates Colonel Fraser, through the influence of clan feeling, was enabled to raise twelve hundred and fifty men in 1757, it was believed, since his estates had been restored in 1772, he could readily raise a strong regiment. So, in 1775, Colonel Fraser received letters for raising a Highland regiment of two battalions. With ease he raised two thousand three hundred and forty Highlanders, who were marched up to Stirling, and thence to Glasgow in April, 1776. This corps had in it six chiefs of clans besides himself. The regiment consisted of the following nominal list of officers:
FIRST BATTALION.
Colonel: Simon Fraser of Lovat; Lieutenant-Colonel: Sir William Erskine of Torry; Majors: John Macdonell of Lochgarry and Duncan Macpherson of Cluny; Captains: Simon Fraser, Duncan Chisholm of Chisholm, Colin Mackenzie, Francis Skelly, Hamilton Maxwell, John Campbell, Norman Macleod of Macleod, Sir James Baird of Saughtonhall and Charles Cameron of Lochiel; Lieutenants: Charles Campbell, John Macdougall, Colin Mackenzie, John Nairne, William Nairne, Charles Gordon, David Kinloch, Thomas Tause, William Sinclair, Hugh Fraser, Alexander Fraser, Thomas Fraser, Dougald Campbell, Robert Macdonald, Alexander Fraser, Roderick Macleod, John Ross, Patrick Cumming, and Thomas Hamilton; Ensigns: Archibald Campbell, Henry Macpherson, John Grant, Robert Campbell, Allan Malcolm, John Murchison, Angus Macdonell, Peter Fraser; Chaplain: Hugh Blair, D.D.; Adjutant: Donald Cameron; Quarter-Master: David Campbell; Surgeon: William Fraser.