« Reply #2 on: Wednesday 24 August 11 21:32 BST (UK) »
How sure are you about the surname of Elizabeth's mother? There's a possible marriage to an Elisabeth Daniel in the right area.
http://v1.cornwall-opc-database.org/moreinfo.php?ID=507871&dbtype=marriages&formval=the family in 1841
Brea, St Just in Penwith HO107/144/11 folio 27 pg 2
James Ellis 45 ag lab
Elizabeth 40
James 15 ag lab
Elizabeth 15
Jane 12
William 9
John 7
Susanna 2
& 1851
Grumbla, Sancreed HO107/1919 folio 51 pg 24
James Ellis head mar 56 tin miner b. Sennen
Elizabeth wife 51 b. Sennen
William son 19 tin miner b. St Buryan
John son 17 tin miner b. St Buryan
Susanna dau 11 b. St Just
Francis son 9 b. St Just
Samuel grandson 9 b. Sancreed
John Hosken son-in-law 23 tin miner b. Sancreed
Jane Hosken wife 21 b. St Buryan

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