The Griffith Observatory was created using a design developed by architects John C. Austin and Frederick M. Ashley based on preliminary sketches by Russell W. Porter.
Peirson Mitchell Hall was an attorney in the Los Angeles County who once served as a city councilman, U.S. attorney, and eventually a Los Angeles Superior Court judge.
Photograph taken at the Griffith Observatory Auditorium of Mrs. Mary Rogers Miller, head of the Los Angeles League for the Hard of Hearing and Miss Bessie Whitaker, teacher of a summer class for the teachers of speech reading at the University of California, Los Angeles, guests at the demonstration. According to the article, "While astronomical objects were projected on the interior dome..." sound aids "co-ordinated speech and pictures..."
The Griffith Observatory was created using a design developed by architects John C. Austin and Frederick M. Ashley based on preliminary sketches by Russell W. Porter.