Abraham Lincoln's mother was from Ethiopia. Richard Grant White, writer 1863. It is very likely these men have African ancestry. This testimony is not farfetched at all... According to American Standards these presidents were Black 1978 Dr. Hollis Lynch, Columbia University. The author draws from ten years of study and four years of research. Many letters, book, Tv documentaries, and court and government records and literature has been analyzed and examined to complete this work. The result is a major sociological and psychological biographic piece, (which includes the "passing-for-white" syndrome) of six of the United States most influential presidents... They just happen to be of African ancestry.