Lincoln ?????

When investigating these statements at another website, I found the information below very interesting in that it also states that there are other presidents that had a black heritage.

The president’s names who were said to have had a black heritage, were listed as Jefferson, Jackson, Lincoln, Harding, and Coolidge. It is said that one of them actually destroyed the papers and documents, that depicted him as having any black heritage.

Abraham Lincoln was our 16th president from 1861 to 1865. J. A. Rogers quotes Lincoln's mother, Nancy Hanks, as saying that Abraham Lincoln was the illegitimate son of an African man. William Herndon, Lincoln's law partner, said that Lincoln had very dark skin, coarse hair and also stated that Lincoln's mother was from an Ethiopian tribe. All of which I not sure has been documented. In Herndon's book titled "The Hidden Lincoln" he also says that Thomas Lincoln could not have been Abraham Lincoln's father as reported. It being because of the fact that Lincoln's father was sterile from childhood mumps and was later castrated as well. Lincoln's presidential running opponents are said to have made cartoon drawings showing him as a Negro and calling him "Abraham Africanus the First."
If in fact this is the truth, then the hype of Obama being the 1st black president, is just that........hype. I find it curious, that the one man that made the "Emancipation Proclamation", was in fact as such. I wonder if there could be history that has been left out of documentation, for such a purpose?