Katharine Seymour Day

Katharine Seymour Day (May 8, 1870 - June 4, 1964) was an American preservationist from Hartford, Connecticut. She worked as a member of the Hartford City Planning Commission to preserve historic homes in Connecticut and helped establish the Children’s Museum of Hartford and the home of Mark Twain as a memorial. She served as president of the Mark Twain Library and Memorial Commission. She moved back to New York after the death of her father and worked with the New York Women's Municipal League to defeat Tammany Hall. She returned to school in 1918 and received her master's degree in psychology from Radcliffe College at the age of 52. She received a graduate degree in history from Trinity College in 1936 when she was 66. Her body was interred in Cedar Hill Cemetery (Hartford, Connecticut).

Legacy She was inducted into the Connecticut Women's Hall of Fame for her work in historical preservation and women's suffrage.