A biographical history of Francis E. Stanley and Freelan O. Stanley, identical twins from Kingfield, Maine, and inventors and manufacturers of the Stanley Steamer, the Stanley Dry Plate, and numerous other inventions and works of fine craftsmanship, including violins. This book focuses on the lives of the brothers and their families in Newton, Massachusetts, while it explores the social and manufacturing history of one of Boston's most notable suburbs in the late 19th and early 20th centuries.