Fanny was the only daughter of President Rutherford B. Hayes, but she wasn’t lonely at the White House. She had seven brothers, who all liked to play “Hide and Seek” and “Blindman’s Bluff”—and sometimes Supreme Court Justices or Senators would join in the fun. The American consul in Bangkok sent the Hayes children a cat named Siam, who was the first Siamese cat in the United States. Fanny also enjoyed swimming, dancing, piano, and carriage rides around D.C. with her mother Lucy. She would hang out with the White House secretaries as they used these new things called telephones—and if she was good, she would get to talk into them, too.
It's highly unlikely that the Baby Ruth candy bar was named for the daughter of President Grover Cleveland. The Curtiss candy bar company did not exist until 1916, 12 years after her death. The bar was created in 1920 when Babe Ruth totally destroyed the previous home run record (his own), hitting twice s many home runs than he did in his previous record, set in 1919.