The British Pathe news reels are a classic piece of news history and they have just posted TENS of THOUSANDS of videos to YouTube here: https://www.youtube.com/user/britishpathe
The videos are awesome covering time as far back as the 1880's! There is a lot of great stuff that could serve our interests here, too.
One of particular note is this one of the Hindenburg crash. It shows some great views of the airship in flight over NYC.https://www.youtube.com/watch?v=CgWHbpMVQ1U#t