The cannon of the Continental Militia at Lexington belched forth its hoarse sound on the morning of the 15th of April, 1775, as in the gray twilight of approaching day a band of invaders sallied up to demand the dispersion of the rebels. The echo of those reports went ringing through the distant forests, and fleetest couriers carried its tidings beyond the rippling waves of the Potomac, calling the friends of freedom to arms. Mrs. Washington heard the war-cry, and felt that the absence of her husband was now indefinite; for she knew that from his post in the councils of the nation he would go to serve his country in the field. Nor was she mistaken in her conclusions. She met the Commander-in-chief at his winter head-quarters at Cambridge, after an absence of nearly a year, in December, 1775, and remained with him until opening of the spring campaign. During the Revolution she continued to spend each winter with him at his head-quarters. Early in this year she returned to her home, leaving behind her son, John Parke Custis, who had been with his adopted father from the beginning of the war. The next winter she passed at Morristown, New Jersey, where she experienced some of the real hardships and sufferings of camp life. The previous season, at Cambridge, the officers and their families had resided in the mansions of the Tories, who had deserted them to join the British; but at Morristown she occupied a small frame-house, without any convenience or comforts, and, as before, returned in the spring, with her daughter-in-law and children, to Mount Vernon.[2] Footnote 2: Mr. John Parke Custis was married to Miss Nelly Calvert the third of February, 1774. Valley Forge, during the last months of 1777 and the early part of 1778, was the scene of the severest sufferings, replete with more terrible want than any ever known in the history of the Colonies.[3] Footnote 3: Six miles above Norristown, Pennsylvania, and twenty from Philadelphia, on the Schuylkill river, is the deep hollow known as Valley Forge. It is situated at the mouth of Valley creek, and on either side rise the mountains above this lonely spot. To the fact that in this valley there had once been several forges, it owes its name, and here Washington found winter-quarters for his suffering army. During all this winter of horrors, Mrs. Washington remained with her husband, trying to comfort and animate him in the midst of his trials. Succeeding years brought the same routine, and victory and defeat walked ofttimes hand in hand. October of 1781 brought glad tidings of great joy, in the capture of Yorktown, and nothing seemed to defer the long anticipated return of General Washington to his family and friends.