Brief Biography of Kaoru Yamaguchi (1907–1968)
・1907: Born in Gunma Prefecture, Japan.
・1930: Graduated from the Tokyo School of Fine Arts (now Tokyo University of the Arts); subsequently studied in France for three years.
・1937: Co-founded the Free Artists Association (Jiyū Bijutsuka Kyōkai), contributing to the modernization of Japanese Western-style painting.
・1950: Established the Modern Art Association (Modan Āto Kyōkai) with fellow artists, promoting contemporary art movements in postwar Japan.
・1960: Received the Minister of Education's Art Encouragement Prize for his significant contributions to the arts.
・1964: Appointed as a professor at Tokyo University of the Arts, influencing a new generation of artists. ​

Museums Holding His Works
・The National Museum of Modern Art, Tokyo (MOMAT)
Houses several of Yamaguchi's works, including "Idyl" (1956), "Mother and Child" (1951), and "Field and Horses" (c.1960). ​
・Museum of Contemporary Art Tokyo (MOT)
Features "Bird of Spring" (1952), an oil on canvas painting measuring 100×80.3 cm. ​
・Kahitsukan・Kyoto Museum of Contemporary Art
Maintains a dedicated room for Yamaguchi's works, reflecting his poetic sensibility and contributions to Japanese art. ​
・Setagaya Art Museum
Hosted a comprehensive retrospective of Yamaguchi's works, showcasing his artistic evolution.