My happily coincident contribution to our festivities tomorrow: http://en.wikipedia.org/wiki/Carrie_Chapman_Catt_House
Which I've nominated for DYK as well.
It suggests to me that perhaps a couple more potential stubs could be added to the list (basically the other two corners of the love triangle around Catt in the 1920s):
Mary Garret Hay (Catt's preferred partner ... was she notable for more than just that?) Mary Gray Peck (her biographer ... I think that would make her notable).
Daniel Case