Just came across this photo at my grandmothers, Francois, but everybody called him Patuut, because as a small child he would arrive in his car and sound his car horn, so I would go tuut tuut, which then became Patuut, and the whoel family ended up callin ghim that, funny.
This photo might be just pre wordl war 2 or during, he was one of the member sof the Belgian resistance and helped a lot of jews escape that were about to be shipped to concentration camps.