Hi
Have had a look at this one - in the 1861 census for Richard Green and family it does say Little Wittenham as the wifes birth place - however I checked it in 1841 and couldn't find her
From the IGI I found a marriage in Little Wittenham 15th Jan 1822 of John Hitchcock to Margaret Belcher
I think John must have died before 1831
Then 17th Sept 1831 Little Wittenham a marriage of Margaret Hitchcock to Thomas West
From the 1841 census for Little Wittenham
Ann Belcher 65 Pauper Y
Margaret West 40 Y
Thomas Belcher 20 Ag Lab Y
Elizabeth Hiscock 15 Ag Lab Y
Benjemin Hiscock 13 Y
Sara West 9 Y
Catherine West 5 Y
It looks as though Thomas West has died and his widow is back with her mum with some of her children from 2 marriages
Then sometime before 1861 Margaret marries James Low and it is in fact Mary Anns mother who is on the 1861 census with them as visitor Margaret A Low born 1802 Little Wittenham
by 1871 she is back at home with husband James in Little Wittenham
from 1871 Little Wittenham Berkshire
James Low Head born 1797 Little Wittenham Berkshire
Margaret Low wife born 1801 Little Wittenham Berkshire
John T West Grandson born 1852 Little Wittenham Berkshire
Thats my theory - What do you think?

Debbie