Of course, there's a perfectly good reason she didn't. Her last name was already Roosevelt. The happy couple were actually fifth cousins once removed. Their ancestry has been traced back to Claes Martenszen van Rosenvelt, who arrived in New Amsterdam (now New York) in 1649.

Anna Eleanor Roosevelt was born on October 11, 1884. Her father was named Elliott, and he was a younger brother to President Theodore Roosevelt. Eleanor and Franklin married in 1905, and went on to have six children — a girl and five boys (one of whom died as an infant).