I have watched the period ads on Youtube. My question is Who saw the ads and where? At the movies, before the feature? TV was a couple of decades in the future.

Read this:

https://www.thehenryford.org/collections-and-research/digital-resources/popular- topics/photo-and-film-department/

More for your consumption:

https://unwritten-record.blogs.archives.gov/2015/03/04/henry-fords-mirror-of-ame rica/

https://books.google.com/books?id=NXxMCAAAQBAJ&pg=PA112&lpg=PA112&dq=ford+motor+ company+%22film+department%22&source=bl&ots=dH0uSDhOsy&sig=ziJu73oVrZ3haMiFpNwBL zj29jY&hl=en&sa=X&ved=0ahUKEwiAlqyWoLHbAhUDo4MKHckiBWgQ6AEIUjAJ#v=onepage&q=ford %20motor%20company%20%22film%20department%22&f=false

Eric,thank you for posting those links.
For example,in the tiny village I formerly lived in,free movies were shown,the side of a large white barn serving as the screen.
The oldest resident when I moved there remembered silent movies about Ford Motor Company.
She was about 95 in '05 making her born about 1910.
My '25 Roadster was a great nostalgia trip for her.