(2 June 1886 - 24 June 1908) (his death)
Cleveland entered the White House as a bachelor, and his sister Rose Cleveland joined him, to act as hostess for the first two years of his administration. In 1885 the daughter of Cleveland's friend Oscar Folsom visited him in Washington. Frances Folsom was a student at Wells College; when she returned to school, President Cleveland received her mother's permission to correspond with her and they were soon engaged to be married.
On June 2, 1886, Cleveland married Frances Folsom in the Blue Room at the White House. He was the second president to wed while in office, and the only president married in the White House. This marriage was unusual, since Cleveland was the executor of Oscar Folsom's estate and had supervised Frances' upbringing after her father's death; nevertheless the public took no exception to the match. At twenty-one years old, Frances Folsom Cleveland was the youngest First Lady in history, and the public soon warmed to her beauty and warm personality. The Clevelands had five children: Ruth (1891–1904); Esther (1893–1980); Marion (1895–1977); Richard Folsom (1897–1974); and Francis Grover (1903–1995). British philosopher Philippa Foot was their granddaughter.