A Wilsons' Old Superfine sett (c1800) given in the 1819 KPB where it is named simply Leith. Their samples in the Cockburn & HSL Collections are named 'Hay & Leith'. The Hay Leith connection is believed to have come about through a marriage between the two families. At Delgattie Castle, Turriff, there is a Clan Hay centre and Leith Hall, home of the Leith-Hays, is owned by the National Trust for Scotland. Sample in Johnston Collection. 1978. On the other hand . . .a sample from Kilbarchan Weaver's Cottage (2003) was labelled Hay OF Leith. Leith is a sept of Clan Hay.