]> [author note: Herbarium and types unknown] "youngest person to receive a Ph. D. from the Chicago University" (vide New York Times). Example of Name Published: Isoetes lithophila N.Pfeiff., Ann. Missouri Bot. Gard. 9: 135. 1922 Botany Pfeiffer, Norma Etta Pfeiffer, Norma Etta N. E. Pfeiffer N.Pfeiff. N. Pfeiffer Norma Etta Pfeiffer 1889 1989