When Rosa Katherine Morgan was born on 22 February 1922, in Oklahoma, United States, her father, Lewis David Morgan, was 50 and her mother, Laura Charlotte Cornett, was 42. She died on 22 February 1922, in her hometown, at the age of 0.
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.