(4 October 1905 - 5 January 1933) (his death) (2 children)
They were married mere months after meeting, against the wishes of Grace`s mother, who vehemently disapproved of her daughter`s suitor.
In 1905, Coolidge met Grace Anna Goodhue, a University of Vermont graduate and teacher at the Clarke School for the Deaf. They were in the same crowd, boating, picnicking, and dancing—the younger ones of the Congregational Church. That year they were engaged in early summer and married in October, after an attempt in vain by Grace's mother to postpone the vows: she was never enamored with him nor he with her. The newlyweds went on honeymoon to Montreal, originally planned for two weeks but cut short by a week at Coolidge's request. After 25 years he wrote of Grace, "...for almost a quarter of a century she has borne with my infirmities and I have rejoiced in her graces".
Being consistently loyal, he was a devoted husband, but also could be self-centered, undemonstrative and reserved, and often grumpy; and there was the ubiquitous mistress of politics. But Grace knew all of this when she married him, in addition to recognizing in him a man of solid character. She was amiable, tolerant and possessed of an understanding heart. She could mimic her husband's peculiarities and did so to the amusement of family and friends, but without mocking him maliciously. She knew his great strengths and understood his minor weaknesses. Socially, she was as quick witted as he and of greater maturity; she supplemented his natural shyness with a graceful candor, and offset his occasional lapses into taciturnity with a gay loquacity that could keep a dinner table conversation going.
Coolidge was quite frugal when it came to securing a home. They rented. Coolidge did not like to be beholden to bankers or anyone else, for that matter. Independence was his way of protecting his freedom to do what was right. The same impulse caused him to hesitate before joining clubs. Henry Field had a pew in Edwards Church, and Grace was a member, but Coolidge only went along. His decision infuriated his colleagues in politics; after all, the more clubs one joined, the more friends one had at election time. But Coolidge found another way to connect with fellow citizens: he deposited savings with a variety of institutions. Each additional banker who held some of his money was an additional pair of eyes that would follow him, and likely be an additional vote.
The Coolidges had two sons: John (September 7, 1906 – May 31, 2000) and Calvin, Jr. (April 13, 1908 – July 7, 1924). Calvin's death at age 16 from blood poisoning brought on by an infected blister "hurt him terribly," according to son John. John became a railroad executive, helped to start the Coolidge Foundation, and was instrumental in creating the President Calvin Coolidge State Historic Site.