M0YLAN, Stephen, soldier, born in Ireland in 1734: died in Philadelphia, 11 April, 1811. He received a good education, afterward resided in England, and then came to America, where he travelled extensively, and finally settled as a merchant in Philadelphia. He was among the earliest to enlist in the cause of the colonies, and hurried to join the army before Boston in 1775, when, upon the recommendation of John Dickinson, he was placed in the commissariat department. His face and manner attracted the attention of General Washington, who, in March, 1776, appointed him one of his aides-de-camp. In June of the same year, on the recommendation of Washington, he was chosen by congress quartermaster-general, which office he resigned in the following October. He then raised the 1st Pennsylvania regiment of cavalry, an independent organization, with which he was, in the winter of 1777-'8, at Valley Forge, in 1779 on Hudson river and in Connecticut, in 1780 accompanied Wayne on the expedition to Bull's Ferry, and subsequently was in the southern campaign. He served until the close of the war, and before his retirement was commissioned brigadier-general. He resumed mercanthe business at Philadelphia, where for several years prior to his death he held the office of United States commissioner of loans. He was one of the organizers of the Friendly sons of St. Patrick in Philadelphia in 1771, and its first president. One of his brothers was Roman Catholic bishop of Cork, Ireland, another, JASPEU, was a lawyer in Philadelphia, and another, JOHN, a merchant of that city, was United States clothier-general during the Revolution. See the Marquis de Chastellux's " Travels in America" (Paris, 1786).