I desire to express grateful thanks to my researchers, Mr. James Nicholson of Kirkcudbright, who examined on my behalf all the local records bearing upon the period and upon the persons treated of in this book; and to the Reverend John Anderson of the Edinburgh University Library, who brought to light from among the Earlstoun Papers and from the long-lost records of the United Societies, many of the materials which I have used in the writing of this story.
I owe also much gratitude to the Library Committee of the University of Edinburgh, for permission to use the letters which are printed in the text, and for their larger permission to publish at some future time, for purposes more strictly historical, a selection from both the sets of manuscripts named above.
Most of all, I am indebted to my friend, Mr. John McMillan of Glenhead in Galloway, who has not only given me in this, as in former works, the benefit of his unrivalled local knowledge, but has travelled with me many a weary foot over those moors and moss-hags, where the wanderers of another time had their abiding places. Let him accept this word of thanks. He is not likely to forget our stay together in the wilds of Cove Macaterick. Nor I our journey home.