Belmont, August, 1816-1890, Letter. 1863, Sept. 10. 1 item (2 leaves). Location: Mics.:B. German immigrant, financier, and diplomat of New York City, who was married to Caroline Slidell Perry in 1849. Letter written to Rhode Island governor William Sprague recommending the promotion of Captain William J. Slidell, giving an account of his war record, and commending him for resisting inducements to join the Confederacy under the patronage of his uncle. For further information, see online catalog. Mss. 1557.