When Mary Manning was born on 13 January 1747, in Charlestown, Middlesex, Massachusetts Bay Colony, British Colonial America, her father, Thomas Manning, was 24 and her mother, Sarah Wood, was 23.
Irish (Cork and Kerry): adopted as an English equivalent of Gaelic Ó Mainnín ‘descendant of Mainnín’, probably an assimilated form of Mainchín, a diminutive of manach ‘monk’. This is the name of a chieftain family in Connacht. It is sometimes pronounced Ó Maingín and Anglicized as Mangan .
English: from a Middle English survival of the Old English personal name Manning.
North German and Dutch: habitational name from a farm so named, once in possession of a certain Manno (see Mann 2) and his kin.