Mortar Board, the honor society for college seniors, got its start at the University of Idaho as a local society of 13 senior women in 1921. By 1923, a national chapter was installed, but unfortunately today is no longer active.
Sources
MG 371: photo from 1929, left to right Helen Taylor, Norma Geddes, Germaine Gimble, Gwendolyn Griffith, Goldie May Smith, Josephine Harland, in the Kappa Alpha Theta living room; membership list of initial society; scrapbook cover.