Hi again,
Richard Newman's still evading capture,I'm afraid. However,you did say that you wanted info on any descendents,I believe.
Eliza Newman married James Mitchell in Coombe Bissett on 18 Dec 1834. Both were of the parish. They appear to have had one surviving son - Frederick(born in Coombe in 1839). Eliza died in Coombe in 1884 and her husband shortly afterwards. Frederick is last seen in the 1901 census ,a labourer lodging in a boarding house in Southwark.
Louisa Newman married John Macklin in Coombe Bissett on 15 Dec 1834. She died,probably as a result ofchildbirth as she had a daughter Louisa about the same time,in late 1841 in Coombe. Baby Louisa was baptised in Coombe on 31 Oct 1841. The couple also had a daughter Harriet (baptised in Coombe on 23 Aug 1835) and another called Mary Ann (baptised in Coombe on 31 Oct 1837.
Louisa's widower remarried a year later to a woman called Anna Lawes.
I believe that Mark Newman,Richard and Sarah's youngest son,may have died about the same time as his sister in 1841 in Coombe.
This is purely from online research so you would need certificates to verify this lot!
Hope this helps a bit.