Daisy Hilton went by San Antonio's Siamese Twins.

Violet Hilton went by San Antonio's Siamese Twins.

At the Hilton

Like the Chess rule: Queen takes her color, Siamese twins are always Identical twins- and these always take the same gender.

One could not have a Boy and Girl Siamese twins. some for many years were either Brothers (Chang and Eng) or Sisters such as the Hilton sisters, the Gibb ( or Gibbs) sisters, etc. for obvious show-business reasons the distaff twins are preferable to the carnivals, etc. the Hilton Sisters were a stellar example.

So the problem of toilet use does not occur- they are two girls, or two boys so go to either the Men's or women's rooms as the gender requires.

Paris Hilton's father, Rick Hilton, is the grandson of Conrad Hilton who started the Hilton hotel chain.