Mr. Murray may therefore be considered as in a great measure responsible for the event of that proceeding, which he afterwards denounced as a "desperate undertaking." He found, unhappily, ready instruments in the unfortunate Marquis of Tullibardine, in Mr. Radcliffe, and others, whose fate he may thus be considered to have hastened by his alluring representations of the prospects of success.

When it was decided that Charles Edward should throw himself on the loyalty of the Clans, and intimation was given of the whole scheme, Lord George Murray prepared for action. The landing of the Prince, the erection of a standard at Glenfinnin, the march through Lochiel, and the encampment between Glengarry and Fort Augustus, were events which he did not personally aid by his presence. He was, indeed, busily employed in assembling his father's tenantry; and it was not until the Prince arrived at Perth that Lord George Murray was presented to him; he was almost immediately created a Lieutenant-General in the Prince's service. His power in the Highlands was, indeed, of a far greater extent than that military rank would seem to imply; for, although the Marquis of Tullibardine was the nominal commander in the North, to Lord George Murray was entrusted the actual management of affairs; an arrangement with which the modest and conscientious Tullibardine willingly complied.

The character of Lord George might be considered as partly sobered by time; since, at the commencement of the Rebellion of 1745, he was forty years of age. He was in the full vigour, therefore, of his great natural and intellectual powers, which, when at that period of life they have been ripened by exercise and experience, are perhaps at their zenith. The person of Lord George was tall and robust; he had the self-denial and energy of his countrymen. He slept little, and entered into every description of detail; he was persevering in everything which he undertook; he was vigilant, active, and diligent. To these qualities he united a natural genius for military operations; and his powers were such, that it was justly thought, that, had he been well instructed in military tactics, he would have formed one of the ablest generals of the day. As it was, the retreat from Derby, ill-advised as it may be deemed, is said to have sufficiently manifested his skill as a commander.

In addition to these attributes, Lord George was brave to the highest degree; and, in all engagements, was always the first to rush sword in hand into danger. As he advanced to the charge, and looked round upon the Highlanders, whose character he well understood, it was his practice to say, "I do not ask you, my lads, to go before; but only to follow me."[26] It cannot be a matter of surprise, that, with this bold and resolute spirit, Lord George was the darling of the Highland soldiers; and that his strong influence over their minds should have enabled him to obviate, in some measure, the deficiencies of discipline. "Taking them," as a contemporary writer asserts, "merely as they came from the plough, he made them perform prodigies of valour against English armies, always greatly superior in number to that of the Prince Charles Edward, although the English troops are allowed to be the best in Europe." Thus endowed, Lord George Murray showed how feeble are the advantages of birth, compared with those of nature's gift. In rank, if not in family connections, and in an hereditary hold upon the affections of his countrymen, the Duke of Perth might be esteemed superior; but, brave and honourable as he was, that amiable nobleman could never obtain the confidence of the army as a general. It is not, however, to be supposed that any commander would ever have obtained an influence over a Highland army, if he had not added high birth to his other requisites. The Clansmen were especially aristocratic in their notions; and the names which they had honoured and loved from their birth, were alone those to which they would eagerly respond.

To counterbalance the fine, soldierly characteristics which graced the lofty and heroic Lord George Murray, some defects, of too stern a nature to be called weaknesses, but yet indicative of narrowness of mind, clouded his excellent qualities. Unlike most great men, he was not open to conviction. That noble candour, which can bear counsels, or receive even admonition with gratitude, was not a part of his haughty nature. A sense of superiority over every human being rendered him impatient of the slightest controul, and greedy of exclusive power. He was imperious and determined; and was deficient in the courtesy which forms, combined with honesty, so fine an attribute in a soldier's bearing. "He wanted," says one who knew him well, "the sole ordering of everything."[27]

At Perth, Lord George Murray met with the famous Chevalier Johnstone, whom he soon adopted into his service. This young soldier, whose pen has supplied memoirs of the Rebellion of 1745, and upon whose statements much of the reported merits of Lord George Murray rests, was the only son of a merchant in Edinburgh, and the descendant of an ancient and well-connected family. By the marriage of his sister he was nearly related to the House of Rollo; and, from these and other circumstances, he mingled with the best society in his native city.

Having been educated in Jacobite and Episcopalian principles, young Johnstone hailed with delight the arrival of Prince Charles: he resolved instantly to join his standard. Escaping from Edinburgh, he hastened to Duncrub, the seat of Lord Rollo, near Perth. Here he awaited the arrival of the young Chevalier; and here he was introduced by his cousins, the daughters of Lord Rollo, to the Duke of Perth and to Lord George Murray. The Chevalier Johnstone was one of the first Low-countrymen that joined the standard of Charles Edward.

Lord George Murray very soon discovered that the requisites for forming a good soldier and an active partizan were centred in young Johnstone. For the former he was qualified by an open and impetuous character, generally combined with a desperate courage. The jollity and licence of the Cavalier school, which characterized Johnstone, did not materially detract from, but added rather to the popularity of his character. As a partizan, he has proved his zeal by his Memoirs, which afford a sample of much heat and prejudice, and which have, in upholding Lord George Murray, done an injury to the memory of Charles Edward, of which the adversaries of his cause have not failed to take advantage. To many errors of character, and to some egotism, the Chevalier Johnstone, as he came to be called in after-life, united a kind heart and an enthusiastic disposition. He acted for a considerable time as aide-de-camp to Lord George Murray, and afterwards in the same capacity with the Prince. But his liveliest admiration appears to have been directed towards the general who has been classed with Montrose and Dundee,[28] and no subsequent service under other masters ever effaced his impression of respect and confidence to Lord George Murray. After the battle of Preston-Pans Johnstone received a captain's commission from the Prince: and, exhausted with his duties as aide-de-camp, he formed a company, with which he joined the Duke of Perth's regiment. His history, mingled up as it is with that of the General under whom he first served, must necessarily be incorporated with the following narrative.

Lord George Murray continued, for some time, busily engaged in rallying around him his brother's vassals. The Duke of Atholl is partly proprietor, partly superior, of the country which bears his name. That region is inhabited by Stuarts and Robinsons, none of the Duke's name living upon his estates. Of these, several have fiefs or mortgages of the Atholl family, and command the common people of their respective Clans; but, like other Highlanders, they believe that they are bound to rise in arms when the chief of their whole Clan requires it. The vassals on the Atholl territory were well-affected to the Stuarts, great pains having been taken by the father of Lord George Murray, notwithstanding his efforts to appear loyal to the Government, to infuse the spirit of Jacobitism among them.[29]

Of the events which succeeded his joining the Prince's standard at Perth, until the commencement of the retreat from Derby, Lord George Murray has left a succinct relation. It is written, as are his letters, in a plain, free, manly style, which dispels all doubt as to the sincerity of the narrator.