| Name | Birth date | Relationship with Floyd Williams |
| Antenor, IV | WFT Est. Bef. 100 | 64th great-grandfather |
| Antharius | WFT Est. Bef. 100 | 69th great-grandfather |
| Antonia | WFT Est. Bef. 100 | 61st great-grandmother |
| Antony, Mark | WFT Est. Bef. 100 | 62nd great-grandfather |
| Antony, Mark | WFT Est. Bef. 100 | 63rd great-grandfather |
| Aonfhir, Art, 116Th King Of Ireland | WFT Est. Bef. 156 | 59th great-grandfather |
| | | 16th cousin 57 times removed |
| Arletta, Of Falaise | WFT Est. 985-1008 | Wife of the 30th great-grandfather |
| | | Wife of the 3rd cousin 32 times removed |
| | | Wife of the 6th cousin 31 times removed |
| | | Wife of the 6th cousin 32 times removed |
| Arm, Iron | WFT Est. 818-865 | 35th great-grandfather |
| Arnold | WFT Est. 440-555 | 43rd great-grandfather |
| Arnulf I, Of Flanders | WFT Est. 891-928 | 33rd great-grandfather |
| | | 1st cousin 36 times removed |
| | | 2nd cousin 36 times removed |
| Arnulf II, Of Flanders | WFT Est. 899-961 | 31st great-grandfather |
| | | 3rd cousin 34 times removed |
| | | 4th cousin 34 times removed |
| Arnulf, Bishop Of Metz | WFT Est. 544-587 | 43rd great-grandfather |
| Arviragus King Of Brittain | WFT Est. Bef. 100 | 59th great-grandfather |
| Asa Eysteinsson | Abt. 708 | 40th great-grandmother |
| Aslanga | WFT Est. 674-716 | 40th great-grandmother |
| Asmus, Vernon | Private | 1st cousin of the wife |
| Asopert | WFT Est. 405-524 | 44th great-grandfather |
| Atchinson, Charles R. | | Husband of the grandaunt |
| Atheling, Edward | 1016 | 30th great-grandfather |
| | | Half 30th great-granduncle |
| | | 5th cousin 31 times removed |
| | | 6th cousin 32 times removed |
| Athirco | WFT Est. 155-248 | 58th great-grandfather |
| | | 13th cousin 64 times removed |
| Augusta | 1719 | Wife of the 15th cousin 9 times removed |
| | | Wife of the half 23rd cousin 9 times removed |
| Augustus, Ernest | 1629 | Husband of the 12th cousin 12 times removed |
| | | Husband of the half 20th cousin 12 times removed |
| | | Husband of the 23rd cousin 12 times removed |
| Aun Jorundsson | Abt. 509 | 49th great-grandfather |
| Aunsson, Egil | Abt. 530 | 48th great-grandfather |
| Aymer | WFT Est. 1123-1167 | 26th great-grandfather |
| Baldwin I | WFT Est. 818-865 | 35th great-grandfather |
| Baldwin II, Count Of Flanders | WFT Est. 859-894 | 34th great-grandfather |
| | | Husband of the 35th great-grandaunt |
| | | Husband of the 1st cousin 37 times removed |
| Baldwin III | WFT Est. 917-958 | 32nd great-grandfather |
| | | 2nd cousin 35 times removed |
| | | 3rd cousin 35 times removed |
| Baldwin, IV | WFT Est. 964-1001 | 30th great-grandfather |
| | | 4th cousin 33 times removed |
| | | 5th cousin 33 times removed |