The Five Dark Secrets America's First Ladies Wanted Desperately to Keep Private
|James Buchanan, perennial bachelor.|
Harriet Lane, the niece of President James Buchanan, served as First Lady in his administration because Buchanan never married.
Why didn't he marry? He was perfectly happy living with William Rufus King, a man called "Miss Nancy" by Andrew Jackson.
Now of course it's possible it was a strictly platonic thing, but, you know, unlikely.