The only record in Woodbastwick for a Thomas Harris shows that he married on 09 Sep 1764 Mary Bowering. Their children include: Rebecca, b. 1764; Sarah, b. 1768; Thomas, b. 1772.
* Online family trees seem to suggest that Mary Bowering died in 1837.
A second record of Mary's birth only lists Ann as her mother.
* Is it possible that Mary was illegitimate?
Sources
"England Births and Christenings, 1538-1975," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:NNQH-HVH : accessed 18 April 2016), Mary Harris, 30 Jun 1776; citing Norfolk, England, reference ; FHL microfilm 1,596,765.
"England Births and Christenings, 1538-1975," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:NNQZ-CMZ : accessed 18 April 2016), Mary Harris, 03 Jun 1776; citing Norfolk, England, reference Entry # 967 P # 0; FHL microfilm 1,596,765.
Pallot's Marriage Index for England: 1780 - 1837. Jas Chilvers & Mary Harris. 1795. Woodbastwick with Panixworth.
1841 England Census, Sprowston, Norfolk, England. James Chilvers, 70, ag. laborer; Mary, wife, 65. Children: Robert, 25; John, 20.
Note: The Barnes are neighbours to the Chilvers in Church Cottages and Pamela Bunting, 20, is living in their household.