I found an interesting video about Aikido Sensei Andre Nocquet (1914-1999). Andre Nocquet was a famous post-war Aikido student who was a direct student of O Sensei's. He is credited with bringing Aikido to France. This video is very interesting in that there is a lot of candid footage of O Sensei not only doing Aikido but also discussing it. https://www.youtube.com/watch?v=YSRdNWGGqXA