| Name | Birth date | Relationship with Floyd Williams |
|---|
| ?, Marie E. | | Great-grandmother of the wife |
| ?, Pearl | | Wife of the grandfather |
| Achaias King Of Dalriada | Abt. 750 | 39th great-grandfather |
| Adams, Penelope | 1779 | Wife of the 4th great-granduncle |
| Adelaide De Poitiers | WFT Est. 928-951 | 32nd great-grandmother |
| | | 1st cousin 34 times removed |
| Adelbert I | 880 | 33rd great-grandfather |
| Adele | 897 | 33rd great-grandmother |
| | | 33rd great-grandaunt |
| Adelisa | WFT Est. 988-1003 | 30th great-grandmother |
| | | 3rd cousin 32 times removed |
| | | Wife of the 4th cousin 33 times removed |
| | | Wife of the 5th cousin 33 times removed |
| Adils Ottarsson | Abt. 572 | 46th great-grandfather |
| Aefind | Abt. 720 | 40th great-grandfather |
| Aelfgifu | WFT Est. 900-927 | 34th great-grandmother |
| | | Wife of the 1st cousin 35 times removed |
| | | Wife of the 2nd cousin 36 times removed |
| AElfgifu, Of Northampton | WFT Est. 941-970 | 32nd great-grandmother |
| | | Wife of the 3rd cousin 33 times removed |
| | | Wife of the 4th cousin 34 times removed |
| Aelfthryth | WFT Est. 869-895 | 34th great-grandmother |
| | | 35th great-grandaunt |
| | | 1st cousin 37 times removed |
| Aenor, Of Chatellerault | WFT Est. 1082-1107 | 27th great-grandmother |
| Aethelred II, Saxon King Of | Abt. 968 | 32nd great-grandfather |
| | | 3rd cousin 33 times removed |
| | | 4th cousin 34 times removed |
| Aethelwulf, King Of The West Saxons | 790 | 36th great-grandfather |
| | | 37th great-grandfather |
| Agatha | WFT Est. 1003-1026 | 30th great-grandmother |
| | | Wife of the half 30th great-granduncle |
| | | Wife of the 5th cousin 31 times removed |
| | | Wife of the 6th cousin 32 times removed |
| Agatha, Of England | WFT Est. 977-995 | 31st great-grandmother |
| | | Wife of the 31st great-grandfather |
| | | Wife of the 4th cousin 32 times removed |
| | | Wife of the 5th cousin 33 times removed |
| Agnes | | Wife of the grandfather |
| Agni Dagsson | Abt. 424 | 53rd great-grandfather |
| Aidan | Abt. 550 | 47th great-grandfather |
| Aighnach, Eanda, 84Th King Of Ire | WFT Est. Bef. 100 | 71st great-granduncle |
| | | 75th great-grandfather |
| Albany, Henry Duke Of | 1545 | Husband of the 9th cousin 15 times removed |
| | | Husband of the half 17th cousin 15 times removed |
| | | Husband of the 20th cousin 15 times removed |
| | | Husband of the 21st cousin 16 times removed |
| | | Husband of the 22nd cousin 14 times removed |
| | | Husband of the 23rd cousin 14 times removed |
| | | Husband of the 22nd cousin 16 times removed |