« Reply #3 on: Saturday 02 January 21 14:48 GMT (UK) »
the parish marriage is online
21 Jan 1850 parish church of Llangyfelach
John Hopkins full age bach collier Penvillia father Evan Hopkins collier
Margaret Rees full age spinster Penvillia father Morgan Rees collier
both marked, witnesses Thomas Davies & John Rees both signed.
If this is the correct family in 1851
https://www.familysearch.org/ark:/61903/1:1:SG8J-B91John gives his place of birth as Llangyfelach
Possible non-conformist record for John born 26 Feb 1830, baptism 4 July 1830 at Lower Trinity Calvinistic Methodist Chapel. It notes Mary's maiden name as Jones.
Possible 1841 census for John with father Evan
https://www.familysearch.org/ark:/61903/1:1:M7WW-BW5Possible 1851 for Evan + family in the same road as John & Margaret
https://www.familysearch.org/ark:/61903/1:1:SG8J-YKP
Cornwall: Allen, Bevan, Bosisto, Carnpezzack, Donithorn, Huddy, James, Retallack, Russell, Vincent, Yeoman
Cards: Thomas (Llanbadarn Fawr)
Glam: Bowler, Cram, Galloway, James, Thomas, Watkins
Lincs: Coupland, Cram
Mon: Cram, Gwyn, John, Philpot, Smart, Watkins
Pembs: Edwards (St. Dogmael's)
Yorks: Airey, Bowler, Elliott, Hare, Hewitt, Kellett, Kemp, Stephenson, Tebb