Thanks OzJen,
Here are some abbreviated notes I made earlier about Amelia's life after the birth of Benjamin, so please let me know how this fits in with your information.
On 17th November 1831, she married George HERBERT at Dunstable.
In 1841, at Church Street, Dunstable were
George Herbert 40 Ag Lab
Amelia Herbert 40
William Herbert 9
Henry Herbert 10m
Elizabeth Allen 20
Elizabeth Pickering 15
Sarah Allen 15
1851 does not cast much more light. William still lives at home, but Henry is no longer in sight.
Sarah Allen abt 1832 Middleton Stony, Oxfordshire, Lodger Dunstable Bedfordshire
Ann Awood abt 1833 Handon, Suffolk, Lodger Dunstable Bedfordshire
Sarah Awood abt 1830 Handon, Suffolk, Lodger Dunstable Bedfordshire
Kegle Bennet abt 1850 Old St Lukes, London, Grandson Dunstable Bedfordshire
Mary A Fox abt 1834 Dunstable, Bedfordshire, Lodger Dunstable Bedfordshire
Amelia Herbert abt 1798 Aspley Guise, Bedfordshire, Wife Dunstable Bedfordshire
George Herbert abt 1800 Dunstable, Bedfordshire, Head Dunstable Bedfordshire
William Herbert abt 1832 Dunstable, Bedfordshire, Son Dunstable Bedfordshire
I have not studied further than this, so assuming these William and Henry Herberts are two of the sons you have, then who is the third?
By the way, the Kegle Bennet mentioned above is the son of Benjamin by his first wife, Elizabeth Susannah Kegele, who died during childbirth or shortly after.
Regards
Tom