She had her first exhibition in the United States in 1943 showing 36 paintings and in 1944 Alexandra Pregel was accepted as a member of the National Association of Women Artists.
In the 13th century when the Teutonic Knights began their crusade against the Prussians, some 15,000 people might have lived in the area between the rivers identified by the Knights as Pregel (now Pregolya) and Alle (now Łyna).