John Calvin Coolidge, Sr.

John Calvin Coolidge Sr. (March 31, 1845 – March 18, 1926) was an American politician and businessman from Vermont, and the father of Calvin Coolidge, the 30th president of the United States. The senior Coolidge administered the presidential oath of office to his son at their family homestead in the early morning hours of August 3, 1923, following the death of President Warren G. Harding.