=Doyle, John F.=, of John F. Doyle & Sons, 45 William Street, New York City. (Life member of the Society.) Mr. Doyle is the senior member of the real estate firm of John F. Doyle & Sons. He was born in New York City, 1837, a son of James Doyle, who participated in the Irish revolution of 1798, and who came to the United States early in 1806. This James Doyle, the immigrant, had a son who was killed in the Florida war of 1837, and a grandson who fell in 1861, fighting for the Union. John F. Doyle, the subject of this sketch and member of the Society, entered the law office of Alexander Hamilton, grandson of the first secretary of the treasury, afterwards the firm of Hamilton, Rives & Rogers, and remained with them from 1853 to 1869, in the meantime studying law and being admitted to the bar in 1862. Alexander Hamilton, Francis R. Rives, a son of William C. Rives, of Virginia, at one time minister to France and senator, and Nathan Pendleton Rogers, all of the old Revolutionary stock, were members of the firm. Mr. Doyle’s management of some Wall Street properties for them at this period became so conspicuous that he was urged by them to assume the management of their estates, which he did. Shortly afterwards followed the acquisition of the estates of such well-known people as Mrs. Harriet L. Langdon, granddaughter-in-law of the first John Jacob Astor, John Pyne March, Mrs. Morgan L. Livingston, George L. Schuyler, James M. Pendleton, A. Newbold Morris, James H. Jones, John Steward, Jr., Royal Phelps, deceased, Royal Phelps Carroll, Robert S. Minturn, estate of Gertrude L. Lowndes, deceased, William H. King, of Newport, R. I., and others too numerous to mention in detail. A feature of his career as a successful manager lies in the fact that the business associations and connections formed by him in the beginning are still held intact. Among the notable sales made by him are those from William H. Morris to John Jacob Astor in 1880, conveying 150 acres of lots in the twenty-third ward on and adjacent to Harlem River; the great sale of South Brooklyn lots at Gowanus Bay in 1884. Mr. Doyle represents today the same old and well-known families and estates represented by him so many years ago. During his career Mr. Doyle has met and done business with some of the most notable men connected with families notable in American history, such as three of the four sons of the first Alexander Hamilton, Admiral Farragut, Capt. Percival Drayton, Rawlins Lowndes, of South Carolina, William C. Rives, U. S. senator from Virginia, at one time minister to France, George L. Schuyler, grandson of Philip Schuyler and owner of the famous yacht America, Philip Schuyler, his son, Henry Grinnell of Arctic fame, Robert J.