Various supporters of the 1915 Panama-California Exposition at Balboa Park expressed interest in repurposing buildings from the Exposition.
This was complicated because the actual title to the land in Balboa Park remained with the City of San Diego.
In June 1916, museum supporter G. S. Thompson proposed that "The one legal ground that a private museum corporation has that will permit it to occupy city-owned buildings in a public park is that the museum authorities maintain exhibits that will be free, i.e., without admission charges, and open at all times to the public."

The museum eventually occupied three different buildings from the Exposition in Balboa Park, none of which was ideally suited to museum use.

In 1917, the Society paid $500 to the Panama-California Exposition Corporation for the vacant Nevada State Building.
The Society moved its growing collections and library into the building in February 1917, thus creating the San Diego Natural History Museum.

Frank Stephens served as the first director of the museum from 1917 to 1920.

The Board identified its mission as being "to educate and help people know and love nature".
Using specimens from the museum's collections, the institution developed educational outreach programs with city and county schools.

Unfortunately, many of the buildings at the Exposition had been intended as temporary structures.
The two-story Nevada building, with its arcades, flanking wings, and Spanish-Renaissance trim, was not built to last.
The museum obtained permission from the Park Commission to move to the 1915 Foreign Arts Building, which it remodeled in 1920.
 When the Foreign Arts Building proved too small, the museum expanded into the 1916 Canadian Building (previously the 1915 Commerce and Industries Building).
This new space was opened to the public on December 9, 1922.
The museum's intention was to eventually combine the buildings.
Various supporters of the 1915 Panama-California Exposition at Balboa Park expressed interest in repurposing buildings from the Exposition. This was complicated because the actual title to the land in Balboa Park remained with the City of San Diego. In June 1916, museum supporter G. S. Thompson proposed that "The one legal ground that a private museum corporation has that will permit it to occupy city-owned buildings in a public park is that the museum authorities maintain exhibits that will be free, i.e., without admission charges, and open at all times to the public."
The museum eventually occupied three different buildings from the Exposition in Balboa Park, none of which was ideally suited to museum use. 
In 1917, the Society paid $500 to the Panama-California Exposition Corporation for the vacant Nevada State Building. The Society moved its growing collections and library into the building in February 1917, thus creating the San Diego Natural History Museum. 
Frank Stephens served as the first director of the museum from 1917 to 1920.
The Board identified its mission as being "to educate and help people know and love nature". Using specimens from the museum's collections, the institution developed educational outreach programs with city and county schools.
Unfortunately, many of the buildings at the Exposition had been intended as temporary structures. The two-story Nevada building, with its arcades, flanking wings, and Spanish-Renaissance trim, was not built to last. The museum obtained permission from the Park Commission to move to the 1915 Foreign Arts Building, which it remodeled in 1920.  When the Foreign Arts Building proved too small, the museum expanded into the 1916 Canadian Building (previously the 1915 Commerce and Industries Building). This new space was opened to the public on December 9, 1922. The museum's intention was to eventually combine the buildings.
San Diego Natural History Museum