Just received my copy of the updated Abingdon PRs (three cheers for the lovely people at Oxfordshire Family History Society who must spend hours & hours transcribing, checking, publishing and distributing this information so that we can have all the fun of the chase!).
It helps to make the situation clearer.
Harriet Hill married Richard King 31 Aug 1822 at St Helens, Abingdon. I can't find reference to any King children following this marriage, but haven't checked all the Abingdon parishes yet.
Meanwhile, Benjamin Middleton married Elizabeth Rance 1818. They had six children between 1819 and 1827. Elizabeth died in 1828.
Haven't found a burial for Richard King.
Benjamin Middleton and Harriet King married 3rd December 1829, and had three children, as follows:
1830 Dec 3 Edward
1833 May 5 Albert
1835 Jun 29 Harriet
Genie A, are these the three children that you referred to earlier or do you have the details of some King children?
Harriet Middleton buried 1869, aged 68 her abode had been almshouses in Abingdon
Benjamin Middleton buried 1877, aged 80, adobe again almshouses.
KN