"Miss Katherine Seymour Day was born on May 8, 1870, in Hartford, Connecticut. Her father, John Calvin Day, was a prominent attorney and had served as special secretary to Governor William Buckingham during the Civil War. Miss Day was descended from John Haynes, Connecticut's first Colonial governor, and on her mother's side, from the Reverend Thomas Hooker and the Reverend Lyman Beecher. She was the grand-niece of Harriet Beecher Stowe.
"The Day House was located at the corner of Garden and Myrtle Streets. She attended Hartford Public High School and was privately tutored. At age 17, she accompanied her parents to Europe, where they lived in England, Germany, and France from 1887 to 1894.
"After returning to the States, the Days leased Mark Twain's home for two years. Mrs. Clemens's parents had been old friends of the Hookers and Beechers, and Samuel Clemens had leased the home of John and Isabella Hooker, Miss Day's grandparents, from 1871 to 1874 while his own house was being built.
"In 1905, Miss Day set out on a round-the-world trip with Mrs. Emily Ford Skeel, her close friend and a granddaughter of Noah Webster. They toured Japan, China, India, the Near East, and Europe."