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 |
|---|---|---|---|
| GADFIELD | 1600-1850 | Any | Craig Pickup |
| GADSDEN | >1800 | Any | John Reid |
| GAINES | >1800 | East & West Hanney | Ken Godfrey |
| GALE | >1600 | Wantage | John Gale |
| GALE dna | c.1800 | Oxford | Rae Ryan |
| GALLAWAY | Any | abingdon | Liz Denham |
| GALLAWAY | <1820 | Benson | Sylvia Morgan |
| GALLAWAY | any | Benson(Bessington) | Sylvia Morgan |
| GALLAWAY | 18c | Benson | Sylvia Morgan |
| GALLAWAY | abt.1812 | Benson | Sylvia Morgan |
| GAMMON | 17-19c | Any | Wendy Purslow |
| GARBETT | 1900-1960 | Bicester | Fiona Hedges |
| GARDENER | >1700 | Any | Pam Thornton |
| GARDENER | 1750-1890 | Appleton/Sutton Courtenay/Miltn | Jennifer Robbie |
| GARDENER | <1900 | Swalcliffe | Christine Bennett |
| GARDINER | Any | Any | Pam Campbell-McLean |
| GARDINER | 1680-1930 | Dean Spelsbury | Mrs Moore |
| GARDINER | 1650-1850 | Chastleton,Churchill, Daylesford, Fifield, Churchill | Maxwell Smith |
| GARDINER | <1850 | Oxford | Alan Catherine |
| GARDINER | Any | Chinnor | Roz Donnelly |
| GARDINER | <1900 | Spelsbury, Dean | Michael Dumbleton |
| GARDINER | <1750 | Any | Mary Jane Collis |
| GARDINER | <1800 | Watchfield | Jenny Deverell |
| GARDINER | Any | Swalcliffe | Christine Bennett |
| GARDNER | 1600-1800 | Eynsham | Mavis Bassett |
| GARDNER | 1500-1700 | Claydon | Mavis Bassett |
| GARDNER | Any | Marsh Baldon & Nettlebed | Pam Campbell-McLean |
| GARDNER | <1750 | Adderbury | Sue Adcock |
| GARDNER | <1784 | Chadlington | Maureen J. Cook |
| GARDNER | >1700 | Hook Norton | Vivienne Edwards |
| GARDNER | Any | Hook Norton, Alkerton, Bicester | Julia Gardner |
| GARDNER | 1700-1900 | shilton and surrounding villages | Michael Gardner |
| GARDNER | 1700 - 1900 | shilton | Michael Gardner |
| GARDNER | 1825 to 1875 | Woodstock | Katherine Harding |
| GARDNER | >1700 | Wychwood | Glyn Hatherall |
| GARDNER | 1700's | Milcombe | Christine Hill |
| GARDNER | Any | Churchill | Nicola Jackson |
| GARDNER | 1800s | Deddington, Steeple Barton | Lesley Newman |
| GARDNER | 19c | Cogges, Witney, Northleigh | Jeni Palmer |
| GARDNER | Any | Deddington | Lynne Scaife |
| GARDNER | Any | Eynsham | Bob Spicer |
| GARDNER | Any | Banbury | Marilyn Astle |
| GARDNER | >1700 | Chipping Norton, Broughton | Hannah Hopkins |
| GARDNER | 1700-1830 | Deddington | Bonnie Bradford |
| GARDNER | <1745 | Chipping Norton | Dave Padley |
| GARDNER | 1750-1890 | Appleton/Sutton Courtenay/Miltn | Jennifer Robbie |
| GARDNER | 1680-1788 | Hornton | Valerie Elkington |
| GARDNER | <1900 | Swalcliffe | Christine Bennett |
| GAREING | 1820-1920 | Any | Leslie Gearing |
| GARLICK | 1890s | Oxford | Rosemary Barling |
| GARLICK | Any | Ewelme | Helen Young |
| GARNAR | <1850 | Swalcliffe | Christine Bennett |
| GARNER | <1776 | Any | Judith Garner Hinton |
| GARNER | <1850 | Swalcliffe | Christine Bennett |
| GARRETT | 1780 | Alvescot | Ron Hurst |
| GARRETT | Any | Banbury | Sylvia Showell |
| GASCOIGNE | <1841 | Deddington | Bonnie Bradford |
| GASCOIGNE | Any | Banbury | M Cooper |
| GASCOIGNE | 1756 | Deddington, Bloxham | June James |
| GASCOIGNE | Any | Any | John R. Gascoigne |
| GASCOIN | Any | Any | John R. Gascoigne |
| GASCOINE | 19c | Witney, Cumnor, Northmoor | Nikki Eagle |
| GASH | <1770 | Any | Marie Purcell |
| GASKIN | Any | Any | John R. Gascoigne |
| GASKINS | Any | Any | John R. Gascoigne |
| GASKINS | 19c | Witney, Cumnor, Northmoor | Nikki Eagle |
| GATFIELD | 1600-1850 | Any | Craig Pickup |
| GAUNT | 1824-1950 | Any | Sarah Turner |
| GEARINGE | 1600-1750 | Any | Leslie Gearing |
| GEE | <1700 | Chipping Norton | Norma Jee |
| GEE | Any | Ramsden, Finstock | Faith Jones |
| GEEKIE | >1800 | Oxford | Ros Williamson |
| GEERING | 1700-1850 | Any | Leslie Gearing |
| GEERING | 18c | Lyford | Barbara Cox |
| GEFKINS | 1788-1831 | Sydenham, Chalgrove, Lewknor, Aston Rowant | Yvonne Stone |
| GEMOTTE | 16c | Shiplake | Allan Jemmett |
| GEORGE | 1700-1850 | Wallingford, Watlington | Guy Betts |
| GEORGE | Any | any | Samuel Horley |
| GEORGE | Any | Sibford Ferris Sibford Gower Hook Norton | Sue Pedersen |
| GEORGE | <1830 | Any | Mike Brooks |
| GEORGE | 1700-1800 | Witney | Judy Priest |
| GEORGE | Any | Lower Heyford, Cuddeson | Brian East |
| GERARD | c1600 | Swinbrook | Fiona Hedges |
| GERARD | <1680 | Checkendon | Fiona Hedges |
| GERMAIN | 1750 - 1900 | South Weston and Lewknor | Ian Jarmaine |
| GERMAINE | 1750 - 1900 | South Weston and Lewknor | Ian Jarmaine |
| GERMANY | >1600 | Lewknor and surrounding villages | Ian Jarmaine |
| GERRING | 1700-1850 | Any | Leslie Gearing |
| GERRING | Any | Bampton | Nick Liddiard |
| GHISNES | Any | Any | David Gynes ons |
| GIBBARD | 1700 | Shipton | Donna Aitken |
| GIBBARD | 1610 | Lyneham | Donna Aitken |
| GIBBARD | Any | Deddington | Catherine Dukes |
| GIBBARD | < 1800 | Somerton | Kimberly Fraser |
| GIBBARD | Any | Any | Glen Gibbard |
| GIBBARD | 1850's | Great Tew | Hilary Mackenzie |
| GIBBARD | 1600 -1920 | Stratton Audley, Banbury, Charlbury | John Mumford |
| GIBBARD | 1829 - 1881 | Hempton & Woodstock Union Workhouse 1871 | June Staniforth |
| GIBBARD | Any | Somerton | Rebekah Markham |
| GIBBINS | 1830 -1900 | Ipsden, Rotherfield | Jeannie Moore |
| GIBBONS | 19th, early 20th century | Thame, Botley, City of Oxford | Wendy Purslow |
| GIBBONS | >1850 | Cowley | Judy Windwood |
| GIBBONS | 1800 | Wallingford | Judy Windwood |
| GIBBS | 1800s | Oxford, Tackley | Rosemary Barling |
| GIBBS | Any | Deddington | Catherine Dukes |
| GIBBS | >1750 | Broughton and surrounds | Dorothy Gibbs |
| GIBBS | Early 19c | Oxford | Robert Gibbs |
| GIBBS | <1950 | Any | James Hill |
| GIBBS | Any | Banbury | Ann Jones |
| GIBBS | Any | Shutford and surrounds | Kevin Poile |
| GIBBS | 1754-1930 | Any | Susan Ferrell |
| GIBBS | Any | Over Norton | Jackie Cotterill |
| GIBBS | Any | Deddington, Any | Stephen Saffin |
| GIBBS | 1820-1930 | St Aldate's, Oxford & nearby | Mick Cooper |
| GIBBS | Any | Chipping Norton area | Kate Gartner |
| GIBBS | Any | Shutford & surrounds | Jan Wilson |
| GIBBS | 20c | Oxford | Sandra Clifton |
| GIBBS | 20c | Oxford | Sandra Mary Clifton |
| GIBBS | Any | Deddington | Neil Gibbs |
| GIBBS | 18c/19c | Culham | Rosalie Penn |
| GIBSON | 1700-1900 | Oxford | Janet Watts |
| GIFKINS | 1700-1800 | Any | Allen Glasson |
| GIFKINS | >1750 | Aston Rowant, Lewknor | Peter Moore |
| GILBERT | <1750 | Watlington | Margaret Hawkings |
| GILBERT | Any | Any | Joe Connell |
| GILDER | Any | Oxford St. Giles | Jill Clemence |
| GILDING | Any | Bampton Aston | Lorraine Best |
| GILES | 1676-1950 | Hampton Poyle, Hampton Gay, Kidlington, Bletchingdon, Wendlebury | Emma Sweetland |
| GILES | 1780 | West and East Hanney | Liz Eustace |
| GILES | Any | New Marston & Headington | Andrea Fudge |
| GILES | 18-19th centuries | Filkins | Judith Harper |
| GILES | 1560s | South Newington | Sue Holmes |
| GILES | <1800 | Any | Alan W. Inness |
| GILES | Any | Cricklade, Henley | Robyn Navin |
| GILES | >1750 | Swalcliffe | Bryan Hall |
| GILES | <1900 | East and West Hanney | Sheela Banham |
| GILES | <1600 | South Newington | Kim Semmence |
| GILES | Any | Any | Helen Thomas |
| GILES | 1760-1860 | Hampton Poyle | H M McMullin |
| GILKES | <1860 | Hornton | Andy Gilkes |
| GILKES | >1700's | Bloxham, Souldern, Milcombe, North Newington, Broughton | Christine Hill |
| GILKES | 1700-1900 | Bloxham, Milcombe, Souldern, North Newington, Broughton | Christine Hill |
| GILKES | Any | Any | David Smith |
| GILKES | >1700 | Swalcliffe | Bryan Hall |
| GILKES | 1700 - 1850 | Any | Jeremy Waters |
| GILKES | <1760 | Swalcliffe | Doreen Myerscough |
| GILKES | Any | Hornton | Diane Melvin |
| GILKS | <1760 | Swalcliffe | Doreen Myerscough |
| GILKS | Any | Hornton | Diane Melvin |
| GILL | 1500-1600 | Great Bourton, Cropredy | Ryan Dudley |
| GILLAM | >1840 | Culham | Leonie Tuit |
| GILLAM | >1718 | Chipping Norton | Robyn Williams |
| GILLAM | >1733 | Duns Tew | Robyn Williams |
| GILLETT | Any | Any | Fiona Banford |
| GILLETT | 1750-1820 | Henley | Alan Gillett |
| GILLETT | >1900 | Unknown | Sara-Jane Hey |
| GILLETT | >1770 | Henley on Thames | Wayne P Marriott |
| GILLETT | 1700-1880 | Henley On Thames | David Gillett |
| GILLETT | Any | Any | Caroline O'Neill |
| GILPIN | 1600-1700 | Warborough, Shellingford, Dorchester,Wallingford | Linda Buckingham |
| GINES | Any | Any | David Gynes ons |
| GINNS | Any | Any | Julie Welshman |
| GLANTON | Roots of the name | Unknown | Ryan Young |
| GLANVILL | 18c | Dorchester on Thames | Doug Glanvill |
| GLANVILL | 17c-19c | Dorchester, Ewelme | Rick Glanvill |
| GLANVILLE | 1650-1850 | Any | Mark Glanville |
| GLEDE | 1800-2003 | Nuneham courtenay | Frank Stroud |
| GLEED | Any | Chislehampton, Garsington | Jane Bushell |
| GLEED | 1800-2003 | Nuneham courtenay | Frank Stroud |
| GODDARD | 1600-1800 | Chilton and Wantage area | Isobel Clark |
| GODDARD | 1810-1850 | Aston Tirrold | Kathy Hodson |
| GODDARD | c.1840-1865 | Stratton Audley | Sue Taylor |
| GODDARD | 1920 | Oxford | Jane Morris |
| GODDARD | 1871-1929 | Oxford | Terrill Riley-Gibson |
| GODFREY | Any | West Hanney | Linda Hardy |
| GODFREY | Any | Hailey, Witney | Linda Hardy |
| GODFREY | 1800-1900 | Oxford city, Holywell parish | Dale Halliday |
| GODFREY | >c.1822 | Garsington | Olav den Ouden |
| GODFREY | >1854 | Garsington | Gay Moller |
| GODFREY | <1800 | Witney, Hailey | Steve Bumstead |
| GODFREY | Any | Headlington | Hilary Innes |
| GODFREY | 19c | Cassington | Hilary Innes |
| GODFREY | 18c | Watlington | Eileen Godfrey |
| GODFREY | Any | East & West Hanney | Ken Godfrey |
| GODFREY | Any | Witney | Martin Rix |
| GODSON | Any | Any | Celia Dodd ons |
| GODWIN | 1600-1700 | Filkins Broadwell | Ellen Frost |
| GOFFE | 1845-1872 | St. Giles, Headington | Bill Churchman |
| GOFFE | 1814 to 1840 | Islip and Headington | Bill Churchman |
| GOHM | 1750 - 1880 | Caversham | Deborah Dobson |
| GOLBY | Early 1800's | Banbury | Den Golby |
| GOLBY | c1810 | Banbury | Kerrie Rafter |
| GOLBY | Any | Banbury area | Maggie Bonfield |
| GOLD | 1870s | Lower Heyford | Jill Kramer |
| GOLD | <1780 | South Newington | Graham Loveday King |
| GOLD | <1800 | Ducklington | David Nutt |
| GOLDBY | c1812 | Oxford St Michael | Caroline Tilbury |
| GOLDER | Any | Any but especially Upper Heyford and surrounds. | Paul A Golder |
| GOLDER | 1700-1900 | Any | Graham Stone |
| GOLDER | Any | Any | Adam Osben |
| GOLDER | Any | Stoke Lyne, Any | Robert W Golder |
| GOLDER | Any | Somerton and surrounding areas | Beryl Buckley-Golder |
| GOMM | Any | as part of One Name Study | Roger Gomm |
| GOMM | Any | Any, particularly Charlbury | Philip Heeks |
| GOMM | <1851 | Cleveley, Enstone, Chipping Norton, Shipton-on-Cherwell | Stephanie Lever |
| GOMM | Any | Chinnor | Alison Powell |
| GOMM | <1850 | Chinnor | Julia Chant |
| GOMME | 19c | Goring | Deborah Dobson |
| GOMME | Any | as part of One Name Study | Roger Gomm |
| GOMME | Any | Chinnor | Ian Garrett |
| GONDOUX | <1850 | Charlbury | Charlotte Carpenter |
| GOOD | Any | Chalgrove | Sue Hedges |
| GOODALL | 1750 - 1850 | Nettlebed | Pam Campbell-McLean |
| GOODCHILD | Any | Headington, Littlemore, Sandford-on-Thames | Eunice Cubbage |
| GOODCHILD | 1914 | Swerford | Alan Pritchard |
| GOODE | Any | Chalgrove | Sue Hedges |
| GOODENOUGH | 1730-1920 | Warborough | Trevor Lake |
| GOODENOUGH | Any | Warborough, Longworth, Faringdon | Tony Goodenough |
| GOODEY | 1700-1900 | Garsington | Brian Brown |
| GOODEY | Any | Any | Richard G. Miller |
| GOODGAME | Any | Headington | Thomas Robinson |
| GOODGAME | Any | Any | Robin Goodgame |
| GOODGER | any time | any place | Yvonne Withington |
| GOODIN | Any | WHEATLEY | Karan Andrews |
| GOODING | Any | Marsh Baldon | Jenny Dennis |
| GOODMAN | <1810 | Wroxton | Susan Roe |
| GOODWAY | Any | Banbury | Ann Jones |
| GOODWAY | 1700-1900 | Banbury, Neithrop | Kieron Warren |
| GOODWILL | 1740-1800 | Oxford (esp. St. Peter-in-the-East and St. Aldate) | Vicki McKay |
| GOODWIN | 19c | Any | Linda Currie |
| GOODWIN | 1820-1901 | unknown | Linda Currie |
| GOODWIN | early 1800s | Duns tew | Linda Currie |
| GOODWIN | 1800's | DUNSTEW / DUNS TEW | Linda Currie |
| GOODY | Any | Any | Richard G. Miller |
| GOOLD | Any | Ducklington | Carolyn Ramsbottom |
| GOOM | 1736 - 1889 | Oddington, Merton, Bicester, Bletchingdon | Pam O'Donoghue |
| GORDON | 1800-1820 | Chipping Norton | Richard Phillips |
| GOSBEE | Any | Any | Carol Loveday |
| GOSBY | Any | Any | Carol Loveday |
| GOSFORD | 1500-1800 | Warborough & Dorchester | Laurie Page |
| GOSLING | Any | Any | Kevin Nicholas |
| GOUGH | 1800-1900 | Banbury / Neithrop | Michael Cole |
| GOUGH | Any | Great Tew | Rebecca Horne |
| GOUGH | 1700-1890 | Great Tew | Allison Gough |
| GOUGH | ca. 1800 | Banbury | Roger Jelfs |
| GOUGH | Any | Upper Heyford, Souldern, The Bartons, | Graham Gough |
| GOUGH | Any | Any | Joyce Hamson |
| GOULD | <1833 | Ducklington | John Sullivan |
| GOULD | <1851 | Alvescott,Bampton | Jeanette Wickham |
| GOULD | <1780 | South Newington | Graham Loveday King |
| GOULD | Any | Ducklington | Carolyn Ramsbottom |
| GOULD | <1830 | Hailey, Witney | David Nutt |
| GOULDER | Any | Any | Robert W Golder |
| GRACE | >1600 | Aston Rowant, Stanton St John | Kate Day |
| GRACE | <1700 | Steeple Aston | Peter E. Terry |
| GRACE | Any | Bicester | Michael Grace |
| GRACE | Any | Charlbury | Michael Grace |
| GRAHAM | >1850 | Bampton | Emily Smith |
| GRAHAM | >1850 | Thame | Emily Smith |
| GRAIN | Any | Headington | Avril Flanagan |
| GRAINGE | 1800 to 1850 | St. Clements | Doug Lee |
| GRAINGER | >1800 | Burford | David Grainger |
| GRAINGER | 1848-1878 | 0xford City and Headington | Jayne Grainger |
| GRAINGER | Any | Longworth/Besselsleigh/Cumner | Dianne Patterson |
| GRANT | >1881 | North Newington/Banbury | Audrey Fawn |
| GRANT | Any | Oxford | Lee Hamilton |
| GRANT | ca. 1750 | Banbury | Roger Jelfs |
| GRANT | >1880 | Cowley St John | Bob Wright |
| GRANT | <1800 | North Newington | Graham Moore |
| GRANT | 1700-1800 | North Newington | Michael Long |
| GRANTHAM | 1700 | The Heyfords and Banbury | Neil Grantham |
| GRANTHAM | <1750 | Fringford, Ardley, Mixbury, Willaston, Wendlebury, Bicester | Pam Griffiths |
| GRASSBROOK | <1730 | Any | Elaine Ward |
| GRAY | >1800 | Balscott and Wroxton | Rod Gray |
| GRAY | Any | Wroxton-Banbury area | Rod Gray |
| GRAY | Any | Chalgrove, Great Milton | Ann Howlett |
| GRAY | Any | Any | Ray Cross |
| GREATBANKS | 1850-1990 | Any | David J Greatbanks |
| GREEN | >1780 | Bampton | Penny Atkinson |
| GREEN | 1800 1950 | Little Wittenham | Wendy Braid |
| GREEN | 1825 - 1865 | St. James, Crowley | Sandy Burmaster |
| GREEN | Any | Little Wittenham, Long Wittenham | Doug Green |
| GREEN | 1700-1750 | unknown | Peter Green |
| GREEN | ca. 1775 | City of Oxford | Russ Green |
| GREEN | >1700> | Banbury | Teri (Sanders) Johnson |
| GREEN | Any | Handborough, Bladon, North Leigh | Lynda Organ |
| GREEN | 1700-1900 | Marcham, Benson and Ewelme | Paul M Remfry |
| GREEN | 1790 - 1920 | Bodicote & Banbury | Sandra Rumsey |
| GREEN | <2001 | St. Giles Parish Oxford | Paul Landon |
| GREEN | >1755 | Deddington, Steeple Aston | Chris Woods |
| GREEN | Any | Any | Dave Broughton |
| GREEN | <1750 | Deddington | Penny Eves |
| GREEN | Any | Any | Fred Cross |
| GREEN | Any | Pyrton | Patricia E. Flores |
| GREEN | 18c | Any | Bryan Bowen |
| GREEN | <1750 | Chadlington | Steve Bumstead |
| GREEN | Any | Any | Leonard C Hawtin |
| GREEN | <1785 | Any | Theresa Lawrence |
| GREEN | Any | Bloxham | Grace Hutchinson |
| GREEN | <1870 | Any | Mary Jane Collis |
| GREEN | Any | Any | Sharon Neale |
| GREEN | >1755 | Oxford | Caroline Thompson |
| GREEN | Any | Watlington | Stephen Alun Catton |
| GREENAWAY | >1780 | Dorchester | Rosemary Harper |
| GREENAWAY | 1770-1820 | Henley-on-Thames & surrounds | Pamela Hunt |
| GREENAWAY | <1745 | Pyrton, Watlington | Felicity Sanderson |
| GREENAWAY | Any | Burford | Emma Willson |
| GREENAWAY | <1750 | Shipton Under Wychwood area | David Nutt |
| GREENE | 16c | Shipton | John Moore |
| GREENHALF | 1800-1950 | Bradwell | Phillipa Downs |
| GREENING | <1825 | Oxford | Martin K Thompson |
| GREENLY | any | any | Dale Greenly |
| GREENWAY | 1500-1800 | Handborough, Church Handborough, Cassington, Whitney, Ramsden | Richard Greenway |
| GREENWOOD | Any | Oxford | Lorraine Donald |
| GREENWOOD | <1745 | Oxford City | Vicky Ford |
| GREENWOOD | <1750 | Sibford Gower, Swalcliffe | Graham Loveday King |
| GREGORY | 1800s | Noke | Eleanor Collins |
| GREGORY | 1850's | not known | Donna Day |
| GREGORY | 1700 - 1860 | Bicester | Dixie Gregory |
| GREGORY | 1590-1900 | WANTAGE | Terry Gregory |
| GREGORY | 1794 | Banbury | Brian Gubbins |
| GREGORY | 1900's | Swalcliffe | Neil Harris |
| GREGORY | 1840 to 1900 | Little Milton | Anthony Mather |
| GREGORY | 1700-1900 | Any | Graham Stone |
| GREGORY | Any | Bicester, Weston on the Green | Evelyn Kremer |
| GREGORY | <1650 | Woodstock, Wootton | Emma Hartley |
| GREVILL | <1700 | Adderbury, Banbury | Sue Adcock |
| GREVILLE | 1350 - 1650 | Drayton near Banbury | Jim Johns |
| GREY | <1800 | Watlington | Margaret Hawkings |
| GREY | <1870 | Any | Mary Jane Collis |
| GRIFFIN | 1800 - 1875 | Chipping Norton, Churchill | Wendy Brooks |
| GRIFFIN | 1800-1900 | Oxford, Sutton Courtney | Geoffrey Connell |
| GRIFFIN | 1800 - 1940 | Woodstock, Stonesfield | Sarah Milne |
| GRIFFIN | 1700-1750 | Chipping Norton | Leah Savage |
| GRIFFIN | 1600/1700/early 1800s | Chilworth Farm, Nr Wheatley, Wallingford, Blewbury, Hagbourne | Jane Wolsey |
| GRIFFIN | 1700s | Cuddesdon, Great Milton | Jane Wolsey |
| GRIFFIN | Any | Bloxham, Adderbury | Elizabeth Coyle |
| GRIFFIN | >1650 | Stanford in the Vale | Fiona Hedges |
| GRIFFIN | <1900 | Headington | D Peasey |
| GRIMES | 1700-1800 | Abingdon | Jeff Grimes |
| GRIMES | <1800 | Tainton | Simon Burbidge |
| GRIMMETT | Any | Hook Norton, Churchill, Charlbury | Shirley Power |
| GRIMMETT | 17-18c | Chipping/Over Norton | John Moore |
| GRIMMETT | Any | Any | David Sears |
| GRIMSDALE | >1900 | Abingdon | Richard Grimsdale-Yates |
| GRIMSHAW | 18/19c | Vale of White Horse | David Painter |
| GRIMSHIRE | <1780 | Bampton | Susan Lewis |
| GROVES | anytime | milton under wychwood | Pamela Blades |
| GROVES | >1700 | Chipping Norton | Chris Wake |
| GROVES | Any | Any | Alan Simpson |
| GROVES | <1750 | Witney | Peter E. Terry |
| GROVES | Any | Shipton and Milton-Under-Wychwood | Linda Tysoe |
| GROVES | Any | Any | Julie Welshman |
| GROVES | Any | Shipton, Milton | Lynne Keedwell |
| GRUBB | 19c | Black Bourton | Lee Large |
| GUBBINS | 1793 | Alkerton | Brian Gubbins |
| GUBBINS | <1800 | Great Rollright | Kim Semmence |
| GUESS | c1750 | Hook Norton | Howard Samuels |
| GUINES | Any | Any | David Gynes ons |
| GUISE | 1850-1950 | Any | Gordon Guise |
| GULLIVER | <1855 | Banbury/Bicester | Martyn Parsons |
| GULLIVER | 1780-1880 | BANBURY | D. Smith |
| GUMM | <1848 | Charlbury | Maureen J. Cook |
| GUNNICE | >1600 | South Leigh | Chris Wake |
| GUNNIS | 1600-1750 | South Leigh | Robert Steggle |
| GUNNIS | 1750-1800 | Combe Longa | Robert Steggle |
| GUNSTONE | >1800 | Oxford | Lynne Mace |
| GUNTER | c.1550 | Stanford in the Vale | Tim Gunter |
| GUNTHORPE | Any | Bodicote Banbury Neithrop Deddington | Chris Gunthorpe |
| GUNTHORPE | Any | Any | Chris Gunthorpe |
| GUNTRIP | <1800 | chagrove | Victor Morgan |
| GUNTRIP | Any | Any | Chris Gunthorpe |
| GUNTRUP | Any | Bodicote Banbury Neithrop Deddington | Chris Gunthorpe |
| GURDEN | 1700-1920 | Any | Ian Perrin |
| GURDEN | >1600 | Any | Mike Brooks |
| GURLYE | <1660 | Bampton | Fiona Hedges |
| GUTTERIDGE | Any | Goring, Whitchurch | Matt Guthridge |
| GUTTERIDGE | Any | Any | Alan Simpson |
| GUTTRIDGE | Any | Goring, Whitchurch | Matt Guthridge |
| GUTTRIDGE | <1830 | Whitchurch | Andy Bradley |
| GUY | 1800-1850 | Combe, Finstock, Fawler, Charlbury, Witney | Andrew Guy |
| GUY | Any | Chipping Norton area | Kate Gartner |
| GUY | 1701-1787 | Witney, Ashton North | Colin D. Gronow ons |
| GUYATT | any | Kirtlington | Joyce Hoad |
| GYLES | <1600 | South Newington | Kim Semmence |
| GYLES | c1630 | Bletchingdon | Peter Giles |
| GYLKES | <1760 | Swalcliffe | Doreen Myerscough |
| GYLKS | <1760 | Swalcliffe | Doreen Myerscough |
| GYMMETT | 1500-1700 | Shiplake, Rotherfield Peppard | Buddug Hollett (Mrs) |
| GYNES | Any | Any | David Gynes ons |