Others in earlier comments tried to locate these children further along for me with nothing definite.
Elizabeth was "spotted" visiting a Cotterell/Tooze family in 1871. Nothing for Edward who I think is my great grandfather and came to NZ abt 1873. I know he married in 1877 but no details to help on his cert other than Devon and his age.
In 1871, Elizabeth Hall visitor age 22 born Cullompton is a visitor with the family of Thomas Tooze b 1833, his wife Caroline, 6 x Tooze children and Thomas Cotterell b 1787 father in law. They are living in Holcombe Regis.
Thomas Tooze and Caroline Cottrell appear on same page of marriage reg index Q4 1853 Tiverton district.
Thomas Tooze is on 1851 and 1841 censuses with parents William and Sophia. Likely to be the William Tooze and Sophia Disney who married in Halberton on 8 Sept 1831.
William Tooze bapt Holcombe regis 3 April 1809 s/o Thomas and Joan.
In 1841 Caroline Cotterell is with Thomas Cottrell, Sarah Cottrell (assumed parents) and 4 Cotterell children (assumed siblings). In the same household is an Elizabeth Tooze b abt 1821.
There is a death for an Elizabeth Hall age 29 reg in Tiverton district Q2 1850. This is the same quarter and place that the birth of Edward hall was registered mmn Tooze.
Next was a search for an Elizabeth b Cullompton abt 1848 in 1851 census. (Elizabeth birth reg Q3 1847, so would not have had her birthday in 1851, so age would give apparent year of birth of 1848).
No Hall but an Elizabeth Hole age 3 b Cullomptom as lodger in Perkins household. Also a lodger in same household (assumed her father) is Edward Hole widower b Cullompton abt 1814.
Looking for Cullompton baptisms for Edward Hole / Hall, I can't find any around 1814, The nearest are Edward Hole 13 Feb 1825 s/o Edward and Rosamund and
Edward Hall 28 Mar 1824 s/o James and Sarah
I think Edward Hole with assumed father Edward and assumed siblings William and Sarah are on 1841 census - Piece 225 Book 3 Folio 3 Page 1, but can't find Edward Hall.
Edward Hole wid and daughter Elizabeth in 1851 look a good fit, given that the marriage has Hole (assuming correct one). If he had a broad Devon accent, would Hall sound similar to Hole or vice versa? And if he wasn't literate he couldn't check that it had been spelt correctly.
And where is Edward jnr in 1851? He would be just under a year old - perhaps other relatives looking after him.
Not sure of the Thomas Tooze relationship to Elizabeth Tooze (b 1821 ish)
Two candidates in Holcombe Regis- one bapt 25 dec 1821 d/o John and Christian (occ chairmaker) and the other bapt 14 Oct 1821 d/o Sarah Tooze spinster.
Hope some of this turns out to be some use. Will try to find Elizabeth Hall in 1861