Yet, because of the artist's generosity to others when he was alive and the museum's current lack of professional administrators, the vast majority of old photographs and historical materials relating to Yang's life have either been scattered or damaged by insects.
不過，因為畫家生性豪率，加上美術館缺乏專業人員管理，有關楊三郎的老照片及歷史資料，大多遭蟲蛀損毀或因出借而散失。