Some musings on your musings.
1841 Great Chesterford HO107 340 03 21 p36
William Howe, 60, Bailif
Elizabeth Howe, 55
Sarah Howe, 30
John Howe, 20
Rachel Howe, 15
Only John & Rachel b. Essex
Saffron Walden is the Registration District for Great Chesterford.
How sure for Howe?
Bishop, Elizabeth 1845 June Marriages Saffron Walden Essex
Kent, Edward 1845 June Marriages Saffron Walden Essex
Lilly, Susannah 1845 June Marriages Saffron Walden Essex
Shelford, Edward 1845 June Marriages Saffron Walden Essex
vol 12 p 335
There is Bishop family too, Great Chesterford, 1841
No suitable marriage for Elizabeth Howe is found.
SHELFORD, Susan 1848 September Births Saffron Walden Essex
vol 12 p 229
Susan Shelford/Shalford/Shilford, b. ~1848 not found in Essex, 1851
Shelford, Alice Elizabeth 1852 December Births Saffron Walden Essex
vol 4a p 323
This is the only Elizabeth Shelford b. Anywhere, ~1851
< The 1841 census does seem to have some possibility >
< first child was named Susan >
Everything points to this being the right family.
And, just as important, there is no likely alternative.
1861 Gt Chesterford RG9 1121 7 p8
20 High Street
Edward Shelford, head, wid, 70, Ag Lab, b. Gt Chesterford
Thomas Shelford, son, unm, 15, Ag Lab, b. Gt Chesterford
Believe Lucy m. John Parsons 1848
Where did you get the information you already have?