John Coolidge Warren was also the 12th signer of the "Mayflower Compact". John Coolidge John Calvin Coolidge III (September 7, 1906 – May 31, 2000) was an American executive, businessman, and entrepreneur with the New York, New Haven and Hartford Railroad, and the first son of President Calvin Coolidge and Grace Coolidge. John Coolidge was born in Northampton, Hampshire County, Massachusetts, on September 7, 1906. He was the elder of the two children of Calvin Coolidge (1872–1933), the 30th President of the United States from 1923 to 1929 and Grace Anna Goodhue (1879–1957), First Lady of the United States from 1923 to
Goodhue Livingston at 720 Park Avenue. Through his son Goodhue, he was the grandfather of Dr. Goodhue Livingston III (1920–2011), Louisa Anne Livingston (1934–2007), who married Moorhead Cowell Kennedy, Jr. (b. 1930) in 1955, Lorna Livingston, Linda Livingston, who married Nicholas Homans Davis and Arthur Amory Houghton III, and Kip Livingston (1938–2007), a former director of the Federal Reserve Board in Washington. Through his daughter Cornelia, he was the grandfather of Florence Cromwell (b. 1928), Seymour Cromwell III (1934–1977), Cornelia Livingston Cromwell who married Dr. Richard Pillard (b. 1933) in 1958. The Pillards were the parents of three daughters, including Cornelia Pillard,