Ms. Hopkins can't stop telling everyone to read this book! The author brings history to life in two intermingled stories.
This is why we do research.
US History Database - Direct link to the Gilded Age topic page. This link is just to help get you started:
Biography Database - your go to resource for information about historically significant people.
Historical Newspapers - do a search and then adjust the Publication Date to 1875-1900 (or more specific) to drill down to this time period.