Students of Presbyterian church history will discover a whole family of churches whose history sparkles with remarkable personalities and noteworthy achievements, however much they may have been forgotten in the years that followed. Reformed Presbyterians, Associate Reformed Presbyterians, and the dwindling numbers of those who once belonged to the United Presbyterian Church of North America, will all give thanks for the history that is brought to light in these pages. We 'Scottish Dissenting Presbyterians' have a goodly heritage. We have much to discover about our forbears in the faith, and what they accomplished in their day; and much as well to consider with regard to how their distinctive principles and practices may have something vital to contribute to our churches and to our nation today. - Ray B. Lanning and Nathan P. Eshelman, From the Introduction.