The sketches in this book, numbering approximately 2,250 and naming a total of 50,000 related persons, generally treat subjects who were born in the early nineteenth century, with reference to immediate forebears of the late eighteenth century. The sketches typically mention the date and place of birth and marriage of the principal subject, the place of birth of his parents and often grandparents, sometimes the name of the first ancestor in America, and details of religion, education, military service, occupation, home, and residence.