| Keywords: onita thorley topping onitathorleytopping blackandwhite monochrome outdoor black and white Onita Thorley Topping was an important female pilot during the 1930s.  For a while, Onita was the only female pilot in Utah.  She participated in the Shell Trophy race from Glendale to San Diego.  COMMONS.SOURCE INSTITUTION: San Diego Air  Onita Thorley Topping was an important female pilot during the 1930s.  For a while, Onita was the only female pilot in Utah.  She participated in the Shell Trophy race from Glendale to San Diego.  COMMONS.SOURCE INSTITUTION: San Diego Air   |