VAN BUREN, Martin (1782-1862, 8th President of the United States). Autograph letter signed ('M. Van Buren') to the Hon. Lorenzo English, Lindenwald, 19 September 1851, accepting an invitation to the State Fair and praising advances in agricultural and mechanical arts, one page, 4to (247 x 195mm), integral blank. -- Ulysses Simpson GRANT (1822-1885, 18th President of the United States). Autograph envelope cover signed as President ('U.S. Grant'), [?Washington, circa 1870], to Hen. H. Gurley at Arlington House, Washington, one page, (76 x 149mm), with printed heading 'From the President of the United States. Secretary (the latter crossed through), mounted on card with: -- Charles SUMNER (1811-1874). Autograph letter signed ('Charles Sumner') to Mr. Hopkins, [Washington], Senate Chamber, 17 April [18]56, commenting on the books and pamphlets of Dr. Kane, which are not yet published, and praising the pursuit of the sciences, 4 pages, 8vo (187 x 123mm), tipped onto card; with a carte-de-visite photograph portrait signed and 6 other manuscript items signed by P.J. Barnum, Edward Everett, George B. McClellan, Wendell Phillips with photograph, William H. Prescott, and Edwin M. Stanten, all mounted on card; and 2 other manuscripts, one from Charles Wilkes, commander of the U.S. Exploring Expedition. (4)