Hubert is a retired educator and historian on WWII, the air war, the German Occupation and events in the Limburg Province, in the Netherlands. He also specializes in tours for US families and Europeans providing historical perspective on Normandy and the WWII invasion sites. He is an expert about the conditions while living under Nazi Rule. Hubert lives with his wife in Kerkrade, where he has a private museum and collection dedicated to WWII.