This looks like the correct Elizabeth in 1861:
1861
RG9/1595 11 16
Penzance, Cornwall
Elizabeth Hugh, head, wid, 38, House Keeper, b. St Just
Elizabeth, dau, 7, b. Paul
Ellen, dau, 1, b. Penzance
Shame none of the boys seen in 1851 are with them...
(Richard and Thomas are in service)