Governor and Mrs. Coolidge transplanting a tree in front of the State House in Boston, April 6, 1920. Courtesy of Getty Images.

“There are two things necessary for the enrichment of life, mentally, physically, socially, and spiritually. They are very simple and are known to all men. One is hard work and the other is a determination to do right” — Calvin Coolidge, in a letter to Federal Reserve Board Regional Member, H. W. Gibson, November 24, 1920

Courtesy of the Leslie Jones Collection.