Here's the lineage from Isaiah Harrison to Elvis through his first marriage, and Harold and President Lincoln through his second marriage:
1. Isaiah Harrison (1666-1738) m. 1st in 1688 Elizabeth Wright (1666-1698) 2. John Harrison Sr. (1690-1771) m. Phoebe Elizabeth UNKNOWN 3. Elizabeth Harrison (1718-1790) m. Antheunis "Tunis" Hood (1718-1797) 4. John Hood (1750-1837) m. Sarah "Sallie" Austin (1749-1837) 5. William Hood (1777-1860) m. Elizabeth A. Carter (1794-?) 6. Joshua Harrison Hood (1828-1885) m. Margaret Johnson (1830-1910) 7. William H. "Buck" Hood (1852-1935) m. Mary Louisa Warren (1853-1945) 8. Minnie Mae Dodger Hood (1890-1980) m. Jessie Dunning McDowell Presley (1896-1973) 9. Vernon Elvis Presley (1916-1979) m. Gladys Love Smith (1912-1958) 10. Elvis Aaron Presley (1935-1977)1. Isaiah Harrison m. 2nd in 1702 Abigail Smith (1666-?) 2. Daniel Harrison (1701-1770) m. Margaret Cravens (1701-1753) 3. Benjamin Harrison (1741-1819) m. in 1763 Mary McClure (1742-1815) 4. Jane Harrison (1775-1835) m. in 1794 William Cravens (1766-1826) 5. Hannah Cravens (1794-1872) m. in 1816 William Shanks (1791-1863) 6. Robert Shanks (1828-1911) m. in 1850 Sarah Fulmer (1825-1912) 7. Sarah Shanks (1854-1933) m. in 1870 Robert Allen (1845-1904) 8. Laura Allen (1893-1975) m. in 1914 Ross Hawes (1879-1967) 9. Harold Hawes (1915-2001) 2. Abigail Harrison (1710-1780) m. Alexander Herring Jr. (1708-1778) 3. Bathsheba Herring (1742-1836) m. in 1770 Capt. Abraham Lincoln (1744-1786) 4. Thomas Lincoln (1778-1851) m. Nancy Hanks (1784-1818)* 5. Pres. Abraham Lincoln (1809-1865)* Actor Tom Hanks is a distant relative of Abraham Lincoln through Lincoln's mother. According to imdb.com, "(Tom) is a third cousin, four times removed, of former U.S. President Abraham Lincoln. Their common ancestors were John Hanks (1680 - 1740) and his wife, Catherine, who were the great-great-grandparents of Lincoln, and the six times great-grandparents of Tom Hanks."