After the completion of the Oneida, Cooper accompanied Lieutenant (p. 012) Woolsey on a visit to Niagara Falls. The navy records show that on the 10th of June, 1809, he was left by his commander in charge of the gunboats on Lake Champlain. They further reveal the fact that on the 27th of September of this same year he was granted a furlough to make a European voyage. This project for some reason was given up, as on the 13th of November, 1809, he was ordered to the Wasp, then under the command of Lawrence, who afterwards fell in the engagement between the Shannon and the Chesapeake. To this officer, like himself a native of Burlington, he was very warmly attached. The next notice of him contained in the official records is to the effect that on the 9th of May, 1810, permission was granted him to go on furlough for twelve months. Whether he availed himself of it is not known. An event soon occurred, however, that put an end to his naval career as effectively as one had previously been put to his collegiate. An attachment had sprung up some time before between him and a Miss DeLancey. On the 1st of January, 1811, the couple were married at Mamaroneck, Westchester County, New York. Cooper was then a little more than twenty-one years old; the bride lacked very little of being nineteen. His wife belonged to a Huguenot family, which towards the end of the seventeenth century had fled from France, and had finally settled in Westchester. During the Revolutionary War the DeLanceys had taken the side of the crown against the colonies. Several of them held positions in the British army. John Peter DeLancey, whose daughter Cooper had married, had been himself a captain in that service. After the recognition of American independence he went to England, but, (p. 013) having resigned his commission, returned in 1789 to this country, and spent the remainder of his life at his home in Mamaroneck. The fact that his kinsmen by marriage had belonged to the defeated party in the Revolutionary struggle led Cooper in his writings to treat the Tories, as they were called, with a fairness and generosity which in that day few were disposed to show, at least in print. This tenderness is plainly to be seen in "The Spy," written at the beginning of his career; it is still more marked in "Wyandotte," produced in the latter part of it, when circumstances had made him profoundly dissatisfied with much that he saw about him. One of the last, though least heated, of the many controversies in which he was engaged was in regard to the conduct on a particular occasion of General Oliver DeLancey, a cousin of his wife's father. This officer was charged unjustly, as Cooper believed, with the brutal treatment of the American General Woodhull, who had fallen into his hands. The discussion in regard to this point was carried on in the "New York Home Journal" in the early part of 1848.