can't see them in 1861, but they may have been on one of the pieces that is missing. They're in Garndiffaith in 1851
Garndiffaith, Abersychan HO107/2449 folio 491 pg 52
Charles Cook head mar 34 coal miner b. Mathern
Ellin wife 26 b. Trevethin
George son 11 coal miner b. Risca
Sarah dau b. Stowe
all places in Monmouthshire
These transcribed parish records
http://freepages.genealogy.rootsweb.ancestry.com/~monfamilies/trevethinprt.htmshow that Charles was a widower when he married Eleanor. His first marriage to Jane Lyshaw is also transcribed. Charles, Jane & George are in Machen in 1841.
Burials for the Appleton parents are transcribed, but the only Appleton baptism is for a brother of Eleanor's who died young.
There's also an extracted baptism in IGI batch C081291 for Llanelly, Breconshire of Sarah, dau of Thomas & Ann Appleton 22/5/1815.
Ann Appleton's place of birth is given as Broseley, Shropshire and there's an IGI extracted marriage in batch M008701 for Buildwas, just a few miles away, of Thomas Appleton to Ann Boden 5/9/1808.
And baptisms in IGI extracted batch for Broseley C011553 for sons John, 25/3/1810, & George, 9/12/1812, to the couple.
Ann's baptism in same batch 23/1/1791, dau of George & Alice.