John Coolidge (September 6, 1906 — May 31, 2000) was the first son of Calvin Coolidge and Grace Coolidge. September 6 is the 249th day of the year (250th in leap years). ... 1906 (MCMVI) was a common year starting on Monday (see link for calendar). ... May 31 is the 151st day of the year in the Gregorian calendar (152nd in leap years), with 214 days remaining, as the last day of May. ... This article is about the year 2000. ... John Calvin Coolidge, Jr. ... White House portrait Grace Anna Goodhue Coolidge (January 3, 1879 – July 8, 1957) was wife of Calvin Coolidge and First Lady of the United States from 1923 to 1929. ...

Coolidge went to Mercersburg Academy with his brother Calvin and graduated in 1924. He then attended Amherst College, his father's alma mater, and graduated in 1928. In 1929 he married Florence Trumbull, daughter of Connecticut governor John H. Trumbull. He was an executive with the New York, New Haven and Hartford Railroad. He served as president of the Connecticut Manifold Forms Company until 1960, when he reopened the Plymouth Cheese Corporation in Plymouth at the historic village. He helped start the Coolidge Foundation and his gifts of buildings, land, and artifacts were instrumental in creating the President Calvin Coolidge State Historic Site. Amherst College is an independent liberal arts college in Amherst, Massachusetts, USA. It is the third oldest college in Massachusetts. ... The New York, New Haven and Hartford Railroad (AAR reporting mark NH) was a railroad that operated in the northeast United States. ...

He is survived by a daughter, son-in-law, three grandchildren, and two great grandchildren.