For any person with Colonial roots, there are multiple avenues to show relationships with US presidents. For Grandpa's great-grandmother Louisa Sweet we found the links shown below. This research was corollary to disclaiming the family rumor that Louisa was the daughter of John Quincy Adams. She was actually twice his cousin (on her mother's and father's side) and named after the First Lady in 1826.
The matrix shows only the closest relationships between US presidents and Louisa Adams. Example: 2C 3R = 2nd cousin 3 times removed = 2nd cousin of the president, but then 3 more generations down the line. Click on the links to display the descent from the common ancestor at the top of the column. Clicking on the president's name gives you biographical tidbits.
| Vice-President from-to | President from-to | Common Ancestor >>> |
William Ball of London (maybe) | Thomas Davenport of Dorchester MA | Thomas Flagg of Watertown MA | William French of Billerica MA | Thomas Grant of Rowley MA | William Hyde of Norwich CT | Isaac Morrill of Roxbury MA | Henry Sherman of Dedham, Suffolk | Henry Squire of Kingweston, Somerset | Thomas Wilder of Shiplake, Oxon | Edward Winn of Woburn MA |
| Presidents | |||||||||||||
 |
#1: 1789-1797 | George Washington | 3C 6R * |  |
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| #1: 1789-1797 under Washington | #2: 1797-1801 | John Adams |  |
3C 2R | |||||||||
| #6: 1825-1829 | John Quincy Adams | 4C 1R |  |
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| #12: 1849-1850 under and succeeding Taylor | #13: 1850-1853 | Millard Fillmore | 6C 1R | 6C |  |
7C 1R | |||||||
| #14: 1853-1857 | Franklin Pierce | 5C 1R |  |
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| #20: 1881 assassinated | James A Garfield | 6C |  |
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| #22: 1885-1889 1st time | Grover Cleveland |  |
6C | 6C ** | |||||||||
| #24: 1893-1897 2nd time | Grover Cleveland | 6C | |
6C ** | |||||||||
| #27: 1909-1913 | William Taft | 5C 1R |  |
7C 3R | |||||||||
| #29: 1921-1923 under and succeeding Harding | #30: 1923-1929 | Calvin Coo1idge |  |
5C 5R | |||||||||
| #31: 1929-1933 | Herbert Hoover |  |
7C 1R | ||||||||||
| #40: 1973-1974 under and succeeding Nixon | #38: 1974-1978 | Leslie King (Gerald Ford) |  |
6C 4R | |||||||||
| #43: 1981-1989 under Reagan | #41: 1989-1993 | George Bush |  |
5C 4R | 6C 3R | ||||||||
| #43: 2001-2005 | Dubya Bush | 5C 5R |  |
6C 4R | |||||||||
| First Runners-Up | |||||||||||||
| #15: 1861-1865 under Lincoln | Hannibal Hamlin |  |
7C 1R | ||||||||||
| #26: 1905-1909 under Roosevelt | Charles Fairbanks |  |
7C 1R | ||||||||||
| #30: 1925-1929 under Coolidge | Charles Dawes*** | 5C 2R |  |
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