Murchison, Murchie
Murchison, Murchie—These two names are the anglicised forms of Mac Murchadha, a North of Scotland sept; also anglicised Morrow, McMorrow, and Morrowson in Ulster.
Alphabetical Index of Anglicised Surnames in Ireland
See also Woulfe’s Irish Names and Surnames
… and O'Hart's Irish Pedigrees