Hi Tanja,
Thanks very much for the information you have found for me (really appreciated).
In answer to your questions:
1891 - No, I hadn't noticed a 'Salter' with Amy, thanks for pointing that out to me.
1851 - Yes, Sarah was his second wife.
1861 -

definetely were joking!
1891 - Yes he is the right one.
Details of Barton Ernest's other children:
Alice Maud 1886, Edith Ellen 1881, Fanny Louisa 1883 and Stephen Thomas 1884. I believe they were all born in Arreton, IOW.
If you could find out anything more relating to Barton Ernest and his family, it would be extremely helpful, especially in regards to Alice Maud. Alice came to mainland England around the turn of the century with her guardian Mary Hannah Watson (not sure if this will help at all).
Thanks
Dollycat