I foresee the book to be organized as follows.
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Table of Contents
Dedication & Acknowledgements
Notes (on transliteration, spelling of proper names, spelling of village names)
Introduction (essay)
History by region:
Lower Anthracite RegionAppendixes
Upper Anthracite Region
Southeastern PA
Lehigh Valley
Central PA
Altoona-Johnstown Region
Pittsburgh Region
Monongahela River Valley / Southwestern PA
Westmoreland Region
Allegheny-Kiski Valley
Northwestern PA
List of Settlements (town, county) with cross-reference to main entryGlossary
Lodge listings by organization (sorted numeric / by location)
Chain Migration by village
Bibliography
Index (of proper names? – localities will be indexed in the Appendix: List of Settlements)
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Within each region (I may call these the “chapters”), there will be entries for each main community.