Lincoln photo found: Collector

A collector believes a photograph from a private album of Civil War General Ulysses S. Grant shows President Abraham Lincoln in front of the White House and could be the last image taken of him before he was assassinated in 1865.

If it is indeed Lincoln, it would be the only known photo of the 16th president in front of the executive mansion and a rare find, as only about 130 photos of him are known to exist.

Grant's 38-year-old great-great-grandson, Ulysses S. Grant VI, had seen the picture before, but didn't examine it closely until late January. A tall figure in the distance caught his eye, although the man's facial features are obscured.