The Onn Mann Liang collection contains a scrapbook, photographs, 1926 Michigan State College (now Michigan State University) diploma, travel and work documents, and Chinese permits. The scrapbook contains photographs of MSC campus scenes, friends, and scenes. They also reflect his interest in bridges, engineering and architecture and include scenes from Chicago and Buffalo, New York. The photographs include graduation, family photos, and wedding photographs. There are also photographs of his son, Bennett Liang with his wife, Mona.