The Progressive Era in the United States was a time of significant political and social change. This period ran from the 1890's through the 1920's. Key to the movement was elimination of corruption, in support of attaining a more genuine democracy 

Progressives initially worked at local levels, further expanding the movement into state and national levels. No field seemed absent the movement; churches, finance, medicine and industry writ large were all involved. 

Of note, it was not only removal of corruption that Progressivism sought. Inner city and rural reform, environmentalism  and women's suffrage were intrinsic to the era.  

Herbert Hoover was elected President in 1930. Prior to assuming office, President Hoover was known for his humanitarian efforts in Europe. He strongly advocated efficiency in government and volunteerism.

In 1930, President Hoover appointed Charles Evans Hughes as Supreme Court Justice. Mr. Hughes, an otherwise conservative Republican, was among the national leaders of American Progressive movement. 

Selected links regarding the Progressive Era and the Hoover Administration follow:

The Progressive Era:

President Hoover:

The President and the First Lady

With President Kennedy

The Progressive Era