Who were the main activists of the Progressive Era and what did they want?

Episode 30 of "Emily Teaches U.S. History" The Progressive Movement was more of a loose collection of activists, scholars, and politicians who believed society could be improved by government oversight and academic expertise. Not everything they advocate would be seen as "progress" today but they came out of the Gilded Age swinging and made our country a lot more democratic. Topics include: Progressivism; muckraking; Lincoln Steffens; Ida Tarbell; trustbusting; Lewis Hine; child labor; www.patreon.com/antisocialstudies