James Joseph Speyer (July 22, 1861 – October 31, 1941) was an American banker based in the city of New York. Speyer was a well-known figure on Wall Street and the firm of Speyer & Co. was well respected. It closed in 1939. Speyer was actively involved with many social, educational and cultural organizations in New York City. The House of Speyer was the third largest investment banking firm at its peak in 1913, when it managed $2.443 billion, the equivalent of $ billion. Biography Speyer was born to a Jewish family from Germany, the son of Gustav Speyer. He was educated in Frankfurt, Germany, and entered the Frankfurt branch of the Speyer family's banking house, Lazard Speyer-Ellissen, in 1883. He was subsequently connected with the Paris and London branches of the firm before returning to New York in 1885 to join Speyer & Co., the branch of the family firm there. He became the head of the family firm in 1899 and was an officer in many other banks and trust companies. In 1897, he married Ellin Lowery. Speyer was one of the founders of the Provident Loan Society and a trustee of the Teachers College at Columbia University, to which he in 1902 presented the Speyer School. He was also a trustee of the Museum of the City of New York. He was actively connected with the defeat of the Tammany Hall organization in 1894. While initially a substantial financial powerhouse, Speyer & Co. began a decline when World War I started in 1914. Speyer was pro-German, and the London office had to close. During the interwar period, the decreasing value of rail stocks, the United States' rise as a creditor nation, and official anti-Semitism in Germany contributed to further decline of the Speyer interests. Speyer's one-man-show management style was also a factor in the decline as well as his varied interests, which limited the time he gave to his banking concern. He retired in 1938, and the New York branch of the Speyer banking family, Speyer & Co,. ceased operations in 1939. At the turn of the 20th century, Speyer was deeply invested in railroads. He was financial agent for the railroad activities of Collis P. Huntington, helping him acquire bonds to buy out Charles Crocker and Leland Stanford's interests in the Central Pacific Railroad. By 1899, Speyer had de facto control of both the Central and