just a bit more to add.

www.iomfhs.im/lawsons/LawsonBMD/twill/1718_009.html

William Looneys Will in 1718 says.

and if John dye Childless
William is to enjoy all what right John hath by this will, and if
William dye underage John is to enjoy his goods - and my son John
overseere over the rest of the children and an Exectore
of all goods movable and unmovable whatsoever Cleereing
and paying all debts and Charges

Averil