Robert

I've googled Norman Vincent WINTLE and this family are on Ancestor.co.za (is this your information on the South African website?) - password needed to find any more information.

It does have 12 WINTLE names and says Norman Vincent James Wintle died in 1932 (married Janet Lorraine) - was your G/Grandfather John Arthur WINTLE born in the FOD ? - and then his Sons i.e. Norman/Leslie/Arthur went to or were born in South Africa?

The earlier names listed on the site are

WINTLE

Elizabeth - died 1913
Alfred - died 1919
William Henry - died 1921
Arthur John 1934
Frederick William Bourne - 1939

a long shot

Year: 1884
Month: Sep
Day: 21
Parents_Surname: WINTLE
Child_Forenames: Arthur John
Fathers_Forenames: George
Mothers_Forenames: Kate
Mothers_Surname:
Residence: Woolaston
Occupation: Farmer & Publican
Officiating_Minister: William Somerset Rector
Event: Baptism
Memoranda:
Notes:
Register_Reference: P376 IN 1/11
Page_Number: 16
Parish_Chapel: Woolaston

Name: Arthur John Wintle
Year of Registration: 1884
Quarter of Registration: Jul-Aug-Sep
District: Chepstow
County: Gloucestershire, Monmouthshire
Volume: 11a
Page: 20

1891
George Wintle abt 1842 Longhope, Gloucestershire, England Head Chepstow, Monmouthshire
Kate Wintle abt 1859 Newent, Gloucestershire, England Wife Chepstow, Monmouthshire
Kate Wintle abt 1879 Aylburton, Gloucestershire, England Daughter Chepstow, Monmouthshire
Reginald Wintle abt 1880 Lydney, Gloucestershire, England Son Chepstow, Monmouthshire
Earnest Wintle abt 1881 Lydney, Gloucestershire, England Son Chepstow, Monmouthshire
John Wintle abt 1885 Woolastone, Gloucestershire, England Son Chepstow, Monmouthshire

Year: 1893
Month: Dec
Day: 22
Surname: WINTLE
Forenames: Kate
Residence: Chepstow
Age_at_death: 44
Officiating_Minister: Rev[eren]d E J Hensley
Event: Burial
Cause_of_death:
Memoranda: [1]wife of George Wintle [2][place of burial] Plot H [number of grave] 122 [3]Con[secrated ground]
Notes:
Register_Reference:
Page_No: 47
Parish_Chapel: Chepstow Municipal Cemetery

1901
William Wintle abt 1817 Taynton, Gloucestershire, England Head Longhope, Gloucestershire
Sarah Wintle abt 1817 Newent, Gloucestershire, England Wife Longhope, Gloucestershire
Ann Wintle abt 1844 Longhope, Gloucestershire, England Daughter Longhope, Gloucestershire
John Wintle abt 1884 Woolaston, Gloucestershire, England Grandson Longhope, Gloucestershire

Possible :-

Name: Arthur John Wintle
Name: Mary Elizabeth Townsend
Year of Registration: 1906
Quarter of Registration: Apr-May-Jun
District: Belper
County: Derbyshire
Volume: 7b
Page 1387

Name: Margaret Evelyn Wintle
Year of Registration: 1907
Quarter of Registration: Jul-Aug-Sep
District: Belper
County: Derbyshire
Volume: 7b
Page: 685

1911
WINTLE ARTHUR JOHN M 1885 26 Belper Derbyshire
WINTLE MARY ELIZABETH F 1876 35 Belper Derbyshire
WINTLE MARGARET EVELYN F 1908 3 Belper Derbyshire

Name: Margaret E Wintle
Spouse : Leslie Riley
Date of Registration: Apr-May-Jun 1930
Registration district: Belper
Registration county (inferred): Derbyshire
Volume Number: 7b
Page Number: 1795

Name: Mary E Wintle
Death Registration Month/Year: 1955
Age at death (estimated): 80
Registration district: Belper
Inferred County: Derbyshire
Volume: 3a
Page: 58

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Ἀριστοτέλης A Gloster Boy in the Forest of Dean ><((((*>

Looking at your notes on the website

http://www.wintle.on.ca/wintleafrica.html

?

1891 Wales Census

Glamorgan, Llantwitfardre - Registration District Pontypridd
7 Tramsroad Side

WINTLE family

William - 38 - Saddler, born Glam, Treforest
Mary - 34 - wife and children all born South Africa, Cape Colony
William - 15 - Coalminer
Matilda - 13
Arthur - 11 (c1880 - ties in with Death Certificate - on South Africa Archives message)
Maude - 4
Ellen - 2

can find William WINTLE c1853 from the FOD - but not Treforest, Glamorgan

Church of Latter Day Saints

Janet Lorraine WINTLE - born 25 March 1908 - Capetown, Cape of Good Hope South Africa, parents Walter Henery RANKIN and Ethel Elizabeth NICHOLS

Rootsweb South Africa (Archives - 2007)

http://archiver.rootsweb.ancestry.com/th/read/SOUTH-AFRICA/2007-01/1169579714