Of Thomas Butler, the third son, we glean the following facts from the American Biographical Dictionary. In the year 1776, whilst he was a student of law in the office of the eminent Judge Wilson of Philadelphia, he left his pursuit and joined the army as a subaltern. He soon obtained the command of a company, in which he continued to the close of the revolutionary war. He was in almost every action fought in the Middle States during the war. At the battle of Brandywine he received the thanks of Washington on the field of battle, through his aid-de-camp Gen. Hamilton, for his intrepid conduct in rallying a detachment of retreating troops, and giving the enemy a severe fire. At the battle of Monmouth he received the thanks of Gen. Wayne for defending a defile, in the face of a severe fire from the enemy, while Col. Richard Butler's regiment made good its retreat. At the close of the war he retired into private life, as a farmer, and continued in the enjoyment of rural and domestic happiness until the year 1791, when he again took the field to meet the savage foe that menaced our western frontier. He commanded a battalion in the disastrous battle of Nov. 4, 1791, in which his brother fell. Orders were given by Gen. St. Clair to charge with the bayonet, and Major Butler, though his leg had been broken by a ball, yet on horseback, led his battalion to the charge. It was with difficulty his surviving brother, Capt. Edward Butler, removed him from the field. In 1792 he was continued in the establishment as major, and in 1794 he was promoted to the rank of lieutenant-colonel commandant of the 4th sub-legion. He commanded in this year Fort Fayette, at Pittsburg, and prevented the deluded insurgents from taking it, more by his name than by his forces, for he had but few troops. The close of his life was embittered with trouble. In 1803 he was arrested by the commanding general--Wilkinson--at Fort Adams, on the Mississippi, and sent to Maryland, where he was tried by a court-martial, and acquitted of all the charges, save that of _wearing his hair_. He was then ordered to New Orleans, where he arrived, to take command of the troops, October 20th. He was again arrested next month; but the court did not sit until July of the next year, and their decision is not known. Col. Butler died Sept. 7, 1805. Out of the arrest and persecution of this sturdy veteran, Washington Irving (Knickerbocker) has worked up a fine piece of burlesque, in which Gen. Wilkinson's character is inimitably delineated in that of the vain and pompous Gen. Von Poffenburg.