On 12th December 1963 in Canada died a pilot and a divisional general dr Józef Zając. He was born in 1891. At first he was not related to military nor aviation, but since 1914 he started participating in forming and operating Polish units in Austria-Hungary, and then in France from which he came back to Poland with the Blue Army. In Polish army Zajączek was performing command and staff functions, in 1924 he became a general officer. In 1936 he took office of Inspector of the Polish Air Force, and in 1937 he also became a commander of Military Minister’s air defence. In 1937 Zajączek completed a flight training. Since 1939 he held the position of Commander-in-chief of Air Force, after Ludomił Rayski’s retirement. After defeated campaign Zajączek became a commander of Polish air force in France, and then a commander of Polish Air Forces. Along with the fall of France and evacuation to Great Britain he was degraded, nevertheless until the end of was holding different positions in the Polish armed forces, tough not related with aviation. After the war ended he stayed abroad engaging in scientific activities.