Morrison Family History
Morrison Name Meaning
Irish: from Ó Muirgheasáin ‘descendant of Muirgheasán’ a diminutive of Muirgheas a personal name meaning ‘sea valor’. Scottish: from Gaelic Mac Moireasdain ‘son of Moireasdan’ a personal name cognate with Irish Muirgheasán’ (see 1 above). Scottish and English: patronymic from the personal name Morris .
Source: Dictionary of American Family Names ©2013, Oxford University Press