The film footage
The films of the American journalist Julien Bryan were probably shot in the summer of 1937 or the following year. His recordings of the Goldschmidtschule were never published.
A few years ago I saw them in the Library of Congress and received a scan permit. We had the HD scans technically edited and improved without changing the original film footage too much. The exact dating of the recordings is not proven. On page 12 of the passport a withdrawal of money in Heidelberg in September 1937 is noted.
Thea Wolffsohn, a former student of the Goldschmidtschule, has seen the pictures and believes to recognize herself on a picture in the classroom. However, she attended the school in 1938. Then these pictures would possibly have been taken after the Goldschmidts had returned from the USA in the summer of 1938.