Research news
Graeme Rendall | Aerial Encounters With UFOs, 1946-1950
Summary: This presentation will look at selected aerial encounters with UFOs during - and even just before - the earliest years of the modern-day phenomenon. Kenneth Arnold was just one of many pilots who saw strange flying objects that he couldn’t understand or identify. This look at air encounters in the late 1940s & early 1950s will also examine some of the less-well known cases.
See more (external link) 
https://www.youtube.com/watch?v=eUfpJUXy5-o