The earliest aerial view I have found of NDAC is this image published in the June 1925 issue of College and State, an NDAC pamphlet. The view is facing northwest. A key to the buildings that I can identify is shown below:

A=Old Main B=Library C=Science Hall D=Engineering Building E=Agriculture Building

F=Francis Hall G=Chemistry Building H=Veterinary Building I=Unknown J=Farm Buildings

K=Two small unknown buildings L=Festival Hall M=Ceres Hall N=Bjornson Monument

O=Tennis Courts P=Athletic Field