In doing some research on an unrelated family in the Merton Hall area I noted that the Rev. William Boyd wrote the First Statistical Account for Penninghame parish and further, on the Ainslie 1782 map of Wigton county, the residences of Rev. William and J. Boyd Esq are actually marked on the map: http://maps.nls.uk/view/74400335#zoom=5&lat=8834&lon=11788&layers=BT Iain