Astor Library him as president. After two years, in 1891, Thomas M. Markoe was chosen to the office, which he held until the 1895 consolidation. John Jacob Astor III, son of William B. and grandson of John Jacob Astor, died in 1890, having served as trustee since 1858 and as treasurer since 1868. By his will, $400,000 was left to the library. As William Waldorf Astor declined to fill the vacancy, the board ceased to have an Astor on it. At the time of consolidation the trustees, in order of seniority, were Markoe, Henry Drisler, John Lambert Cadwalader, Henry C. Potter, Stephen
John Jacob Astor III John Jacob Astor III John Jacob Astor III (June 10, 1822 – February 22, 1890) was an American financier, philanthropist and a soldier during the American Civil War. He was a prominent member of the Astor family, becoming the wealthiest family member in his generation and the founder of their English branch. Astor was the eldest son of real estate businessman William Backhouse Astor, Sr. (1792–1875) and Margaret Alida Rebecca Armstrong (1800–1872). His younger brother, businessman William Backhouse Astor, Jr. (1829–1892), became the patriarch of the male line of American Astors. His paternal grandparents were fur-trader John Jacob Astor (1763–1848)