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| Name | Total | Name | Total | Name | Total | Name | Total | Name | Total |
|---|---|---|---|---|---|---|---|---|---|
| UFFORD | 12 | UNK | 4 | Underhill | 1 | UPHAM | 17 | Urmey | 19 |
| UNDERWOOD | 39 | Ulrich | 84 | Uhrmann | 2 | UPPEY | 2 | Uterbrink | 4 |
| UNKN | 2 | UMFREYVILLE, De | 1 | ULFSDOTTER (ULF) | 1 | URACH ARBERG | 1 | UR & AGADE | 1 |
| Uncles | 2 | Ulfiusson (Estridsen) | 1 | ULFSSON (ULF) | 1 | Uplands | 1 | Ur-Nammu | 1 |
| ULSIUSSON | 1 | Ulthada | 1 | Ukens | 1 | Usher | 15 | Unkown | 1 |
| ULFSDATTER | 2 | Unavailable | 20 | UNGLE | 1 | URACH | 1 | USHERWOOD | 1 |
| Ulfsson (Estridssen) | 1 | Ufford, De | 1 | UNKNOWN | 1826 | URGEL | 1 | UPTHEGROVE | 1 |
| ULFSSON | 1 | Uhan | 2 | URGEL & BARCELONA | 1 | Urgulanilla | 1 | - | - |
| UCHTRED | 3 | Ufferman | 1 | Upton | 18 | Upshaw | 29 | - | - |
| UMFREVILLE | 7 | Unkefer | 5 | Uredge | 1 | unnamed | 1 | - | - |