When Catherine Morgan was born on 21 August 1811, in Glamorgan, Wales, United Kingdom, her father, John Morgan, was 34 and her mother, Catherine Harris, was 33. She had at least 1 son with John Morgan.
Welsh (especially Glamorgan): from the medieval Welsh personal name Morgan, Morgant (Old Welsh Morcant, of uncertain etymology).
Irish: importation of the Welsh surname (see 1 above), to which has been assimilated more than one Gaelic surname, notably Ó Muireagáin (see Merrigan ).
Scottish: probably from a Gaelic personal name cognate with Welsh Morcant.