I've got these two lines for Richard Nixon which don't seem to have the Hugh Harry descent problem. Two Lines of Descendancy from King Edward III of England to Richard Nixon Numbers 14 - 22 are shown in Ancestry of American Presidents, Gary Boyd Roberts, 1995 Numbers 1-9 and 16-22 are shown on Genealogics ..1 King Edward III of England (1312 - 1377) .. + Philippa de Hainault (about 1314 - 1369) ....2 Sir John of Gaunt (1340 - 1399) .... + Katherine de Roet (1350 - 1403) ......3 Joan Beaufort (about 1379 - 1440) ...... + Sir Ralph de Neville (about 1364 - 1425) ........4 Sir Richard Neville (about 1400 - 1460) ........ + Alice Montacute (about 1408 - before 1462) ..........5 Katherine Neville (about 1435 - between 22 Nov 1503 and 25 Mar 1505) .......... + Sir William Bonville (1442 - 1460) ............6 Cecily Bonville (1461 - 1529) ............ + Sir Thomas Grey (about 1453 - 1501) ..............7 Dorothy Grey ( - between 30 Aug 1553 and 17 Nov 1553) .............. + Sir Robert Willoughby (1472 - 1523) ................8 Elizabeth Willoughby ( - before 1552) ................ + Sir John Paulet (about 1510 - 1576) ..................9 Elizabeth Paulet (1544 - 1576) [1] .................. + William Courtenay (1532 - 1557) [2] ....................10 Gertrude Courtenay (1558 - 1598) .................... + John Fitz (1556 - 1605) ......................11 Walter Fitts (1575 - 1666) ...................... + N.N. ........................12 Bridget Fitts ( - 1673) ........................ + Henry Travers (1611 - after 1648) ..........................13 James Travers .......................... + Mercy Pearce ............................14 Elizabeth Travers ............................ + Nathaniel Haven ..............................15 James Haven .............................. + Sarah ................................16 Elizabeth Haven ................................ + Isaac Hemingway (1730 - 1778) ..................................17 James Hemingway (1760 - 1822) .................................. + Elizabeth Armstrong (1760 - 1837) ....................................18 James Hemingway (1801 - 1893) .................................... + Hope Malmsbury (1804 - 1865) ......................................19 Jane M. Hemingway (1824 - 1890) ...................................... + Oliver Burdg (1821 - 1908) ........................................20 Almira Park Burdg (1849 - 1943) ........................................ + Franklin Milhous (1848 - 1919) ..........................................21 Hannah Milhous (1885 - 1967) .......................................... + Francis Anthony Nixon (1878 - 1956) ............................................22 Pres. Richard Milhous Nixon (1913 - 1994) ............................................ + Thelma Catherine Ryan (1912 - 1993) ....2 Sir John of Gaunt [again](1340 - 1399) .... + Blanche Plantagenet (1345 - 1368) ......3 Elizabeth Plantagenet (before 1363 - 1425) ...... + Sir John de Holand (after 1350 - between 9 Jan 1400 and 10 Jan 1400) ........4 Constance de Holand (about 1387 - 1437) ........ + John Grey ( - 1439) ..........5 Alice Grey ( - 1474) .......... + Sir William Knyvett (between 1430 and 1440 - 1515) ............6 Sir Edmund Knyvett ( - 1504) ............ + Eleanor Tyrrell ( - 1514) ..............7 Anne Knyvett (1492 - 1558) .............. + Sir George Saint Leger (1484 - 1536) ................8 Catherine Saint Leger (1514 - ) ................ + George Courtenay (1503 - ) ..................9 William Courtenay (1532 - 1557) [2] .................. + Elizabeth Paulet (1544 - 1576) [1]