Monmouthshire Parish Record Transcripts (on the net)

has under TREVETHIN

baptisms

20/8/1837 Elijah ELTON - son of Richard and Sarah ELTON, TROSNANT - Miner, 7 weeks *

* on the 1841 census with Richard and Sarah ELTON, Elijah/Eliza is first listed as a male/then a female + a younger sibling Hanah aged 1

burials

4/3/1867 Hannah ELTON, 21 months, Albion Road

29/9/1885 - Sarah ELTON - 41 - Workhouse

no sign of any ELTON marriage or a Richard ELTON baptism in Trevethin