Abraham Lincoln Birthplace National Historic Site commemorates the birthplace of Abraham Lincoln, sixteenth president of the United States . The Site contains 116.5 acres, representing approximately one-third of a 348.5-acre farm along the South Fork of Nolin Creek that was purchased by Lincoln 's father, Thomas Lincoln, in 1808. The following February, Abraham was born in a small cabin. The family left Sinking Spring Farm, where the Lincoln Overcup Oak grows, two years later over a land patent dispute.