I think that 2 Elizabeth LLOYD’s have been confused - Elizabeth Lloyd - Gunning - Isles
Charles Lloyd and Elizabeth Lloyd - Gunning - Isles had a daughter Elizabeth in 1817 (as Elizabeth Eloyd) and a son Charles in 1822
In the 1822 census they only had 1 child, and in the 1825 only Charles is listed. There is a death record for an Elizabeth Eloid in 1818 aged 1 year
Timothy Buckley married an Elizabeth LLOYD in 1845.
At least 10 internet trees say that his wife was born 1825 in Ireland