County administration papers mainly from Caernarfonshire and occasionally elsewhere in North Wales, comprising county officials' papers, [c. 1576]-1820, assessments and taxation records, 1583-1664, [18 cent.], militia papers, [1588x1595]-1683, and election papers, 1620-1831. Documents which concerned Sir William Maurice and Sir John Owen as Deputy Lieutenant and Vice-Admiral of North Wales have been included here since the main sphere of their duties lay within the county of Caernarfon.