On the strange life and presidency of Calvin Coolidge:

The Coolidge family never wasted words. John Coolidge simply notified his son that President Harding had died in San Francisco a few hours earlier. Calvin Coolidge calmly got dressed and walked across the street to a general store where he contacted Secretary of State Charles Evans Hughes by telephone, drank a Moxie beverage, and left a nickel to pay for it. Coolidge then walked back across the street to his father’s home.