The Morgan Charles who married Hannah Lewis was known as Morgan Charles Morgan. He was was born at Gwydre, Llanddausant in 1788 and married Hannah in 1810, they lived at Tyryclyn. Hannah died 1810 and Morgan in 1828.
They had 5 children between 1817 and 1823 (there may have been more but I have no record of them as it seems funny to have had one every other year from 1817 but none from 1810 t0 1917 0 they may not have survived.)
Hannah was the daughter of David Lewis Howell and Ann Bowen.
David was of the Lewis Howells of Pont Hywell, Llanddausant but dropped the Howells element and took Lewis as his surname giving up the welsh tradition.
If this connects do come back.