John Coolidge

John Coolidge, who died in 1822, was an American politician and the father of John Calvin Coolidge, Sr. Calvin Galusha Coolidge, another American politician, was the son of Calvin Coolidge, who served as the President of the United States from 1923 to 1929, and was the grandson of John Coolidge. Calvin Galusha Coolidge was the father of Calvin Coolidge, making him the grandfather of the 1920s U.S. president.