Was Abraham Lincoln gay? This is a column by Cecil Adams which looks at the issue of Lincoln's sexual orientation.
From the site:
Abe's enemies accused him of plenty, but never a yen for men. Today we're all but sure J. Edgar Hoover was gay and that Jefferson sired children by a slave, but people suspected as much at the time. No comparable rumors swirled around Lincoln. It's not like folks in the 19th century didn't know what homosexuality was--Lincoln's predecessor, James Buchanan, the only bachelor president, roomed for years with an unmarried U.S. senator and took plenty of flak for it. We'll see if the Tripp and Kramer books can settle this matter--Lincoln's sexual orientation is one question DNA tests seem unlikely to resolve.