In this period the library has moved to its present address and changed its name (it was originally called the Han-ho Library), and has come under the jurisdiction of the Harvard Library. The number of volumes has gone from 400,000 to 800,000, with holdings expanded from the original Chinese, Japanese, and Korean language materials to include Vietnamese plus Western materials on East Asia.
這段期間，燕京圖書館遷至現址、改為今名（原名漢和圖書館）、改組為隸屬哈佛大學圖書館，藏書則由四十萬冊增至八十萬冊，涵蓋面更從原有的中、日、韓文書刊，擴及至越南文出版品及西文的東亞研究資料。