Walnut Grove Prestons were located in the Londonderry Area (LDY)(known as County Derry) (black).

Smithfield Prestons, although believed to be from the "Valley Field" Prestons, a branch of the Prestons of Preston-Richard in the North of England, they were living in Limavady, in Londonderry County (LDY) prior to coming to this country. (black)

Gormanston Prestons lived at (still do) the Gormanston Castle located at the boundry of Meath (MEA) and Dublin (DUB) Counties. (black)

Hays clan was located in the Horns Head area of Donegal (DON) County in Northern Ireland. Dark brown area.