Lieutenant Tyrrell was totally unapprised of the intention, or motions of the enemy:--his guard were extremely vigilant during each night, but not apprehending any danger in the day time they frequently dispersed through the village for the purpose of recreation and refreshment. This happened to be the case with many of his men upon Wednesday morning the 11th of July, on which day, about eleven o'Clock Mr. _Richard Allen_ galloped into the Court, and brought intelligence that he was pursued by a piquet guard of the Rebels, whom he narrowly escaped as they were well mounted; and he was confident a considerable force was approaching. The alarm was instantly given--every exertion was made to collect the scattered men, and parties were stationed in the most advantageous positions. As the enemy were expected from the Dublin side, six of the Corps (including Mr. Allen and Thomas Tyrrell junr. the Lieutenant's son, and only fifteen years of age) took possession of an old Turret at the extremity of the garden; and which commanded the road. Such was the rapidity with which the Rebels advanced, that the firing actually commenced from this quarter upon their Cavalry before the entire guard could be collected, and the gate leading into the Court yard was under such necessity closed to the exclusion of several, so that when Lieutenant Tyrrell came to ascertain his strength, he found he had only _Twenty-seven_ men, including his own three sons, the eldest of whom was only seventeen years old! Such a critical situation required the coolness of a man innured to military danger, and all the exertion, firmness and skill of a veteran soldier. But although Lieutenant Tyrrell never had served in the Army, his own good sense supplied the want of experience, and his native courage furnished resources adequate to the magnitude of the occasion. He found his men as zealous as himself, determined to maintain their post and to discharge their duty to their King and Country, or fall in such a glorious cause. After sending a supply of ammunition to the advanced post at the Turret, and stationing other out-posts, he retired into the house with the main body, from which he selected the best marksmen, and placing them at particular windows gave directions that they should not fire without having their object covered, he had the rest of the men secured behind the walls and incessantly employed in loading musquets and carabines for the marksmen at the windows.