dna next to a surname below indicates it has been registered with the DNA linking service
and the researcher is keen to find bearers of the same surname to join a DNA project.
ons next to a user below means the user has registered a one-name study of a surname
with the Guild of One-Name Studies.
| Surname | Timeframe | Place | Researcher |
|---|---|---|---|
| CASTLE | 1800 | Islip | Lynn Clarke Ahrens |
| CASTLE | <19c | Cogges | June Castle |
| CASTLE | 1650 - 1850 | Burford | Paul Chavasse |
| CASTLE | 1613-1635 | unknown | Nancy Castle Eggleston |
| CASTLE | Any | Brize Norton, Bampton | Carol Fitzgerald |
| CASTLE | b 1824-5 | Oxford | Susana Frushour |
| CASTLE | >1800 | Burford | Diana M. Wakefield Hawkins |
| CASTLE | 1870-1920 | Bicester | Pam Hendy |
| CASTLE | Any | Neithrop, Banbury | Stephanie Brooklyn |
| CASTLE | 19c | Glympton | Stuart McIntosh |
| CASTLE | Any | Any | Debbie Miles |
| CASTLE | <1800 | Sandford on Thames | Debbie Miles |
| CASTLE | 1800 - 1900 | Chipping Norton/Churchill | Marie Nimmo |
| CASTLE | 19c | Islip | Judith Palmer |
| CASTLE | <1764 | Barford St.John | Kerrie Rafter |
| CASTLE | Any | Any | Yoga-Prakash Saraswati |
| CASTLE | Earl 1800's | Oxford | L Whittinger |
| CASTLE | 17c | Deddington | Penny Eves |
| CASTLE | <1730 | Wootton | Celia Charlton |
| CASTLE | 16-17c | Shipton | John Moore |
| CASTLE | <1890 | Any | John Cramer |
| CASTLE | <1790 | Duns Tew | Vicky Ford |
| CASTLE | Any | Glympton | Stuart McIntosh |
| CASTLE | Any | Adderbury | Dawn Riddiford |
| CASTLE | 1600-1650 | Lyneham | John Shelley |
| CASTLE | 1880 | Deddington | Julie Castle |
| CASTLE | c1820 | North Stoke | Carolyn Nimmo |
| CASTLE | Any | Ducklington | Gordon Parker |