Sir John Cochrane of Ochiltree, in Ayrshire, was one of Argyle's chief associates in that unfortunate and abortive attempt, made by the exiles in the year above named, to compass the overthrow of the reigning monarch, James II., so far as Scotland was concerned, which attempt was only part of the more general scheme of the exiles abroad--both English and Scotch--and the disaffected at home, to drive the king from his throne, and to place the Duke of Monmouth thereon in his stead. After a variety of disasters experienced by the limited following which Argyle and his party had been able to bring together, and when hope of a successful issue could no longer secure cohesion, there ensued a general break-up of the party, accompanied by what is to be looked for in similar situations--a general flight and _sauve qui peut_. Sir John Cochrane sought refuge in the house of a relative in Renfrewshire, where, however, he was discovered by his pursuers at the end of June; and on the 3d of July, Sir John, his son, and another traitor were brought into Edinburgh, "bound and barefooted, by the hangman," and cast into the Tolbooth to await their doom. What daring enterprises may not flow from a woman's love and devotion, when a parent's liberty is imperilled or his life is at stake! Sir John had a daughter called Grizel, who fondly loved him, and who, on visiting him in prison, had not failed to show the intensity of her filial regard; nor was Sir John slow to reciprocate these feelings on his part. Being then but eighteen years of age, she nevertheless conceived the daring thought of intercepting the mail-packet coming from the South, which was supposed to contain a warrant for the execution of her father; and with this object in view, she proceeded to Berwick-on-Tweed alone. Here she habited herself in male attire; and being armed, and mounted on a fleet horse, she set out upon her extraordinary and perilous adventure. [Illustration: Grizel Cochrane and Postboy.] On Tweedmouth Moor, it is narrated, she fell in with the postboy, who, under threats of immediate death, gave up his charge, Grizel riding off with the mail-packet and the postboy's horse, from which he had been unseated. Under these circumstances, the warrant not reaching its destination, it could not be put into execution, and the delay which took place before another could be procured, was turned to account by Sir John's friends, who exerted themselves on his behalf. Sir John was the younger son of a rich family, from whom a ransom was to be had; and it is stated that a bribe of £5000 by Lord Dundonald, Cochrane's father, to the priests of the Royal household, was the means of securing a pardon. Sir John lived to become Earl of Dundonald, while Grizel became the wife of John Kerr of Morriston, in Berwickshire; and there can be little doubt that she afterwards exhibited as a wife all the amiable and affectionate qualities of which she proved herself possessed as a daughter.