The rest of the 1920's Leon served as director of the Scandinavian-American Art Association in Chicago. In this capacity, he returned to Sweden to participate in the Swedish American Exhibition in Gothenburg, Sweden in 1923.
In his early 60's, Leon Lundmark moved to Altadena, California where he built his home and studio. It was here he did some of his best work. He exhibited with the California Art Club and had an exhibition in the Beverly Hills Hotel in 1939. He die three years later on May 2, 1942 at the age of sixty-six.
He is remembered for his seascapes and coastal scenes, ranging from the mighty and viscously dramatic to the calm and peaceably tranquil, done in Sweden, the Great Lakes, Maine, and California. During his lifetime, his work was exhibited in sixty-one American cities and twelve other countries.
Source: Scanlanfinearts.com http://www.scanlanfinearts.com/leonlundmark.html