This scrapbook documents Jergenson's career at General Motors, predominately during his first tenure there, 1936-1947. Photographs, handwritten notes, advertisements, and his design illustrations highlight the many projects he worked on at GM: Greyhound bus, Cadillac, Delco radio, Frigidaire refrigerator, diesel locomotives. The bulk of the scrapbook focuses on the Train of Tomorrow, from initial idea sketches to building the model. He even included ephemera such as letterhead, a matchbook, and a cocktail napkin. Of interest is an automotive design glossary and a vinyl record titled "Wonderful Train of Tomorrow." The last page of the scrapbook has photographs of Jergenson teaching surface development in 1973.