In the 1940s he worked primarily for the Chinese Ministry of  Educatin  and National Central Library in the areas of antiquities, education and publications.
 A lasting achievement was to recover the works of the Rare Book Preservation Society   (文献保存同志会) which were looted during World War 2.
It began with the Yuyuan Road Conferences (愚园路会议) in 1945–1946 to identify the wartime booty that Japan took.
 Key members included Jiang Fucong, Ma Xulun, Zheng Zhenduo, and Zhang Fengju.
  Official Yuyuan Road 愚园路会议 Ministry conference minutes shows signatures of the conference attendees.
Zhang Fengju 张凤举 is the lower signature of the 1st line .

March 23, 1946, the Ministry appointed Zhang Fengju to the Chinese Occupation Mission in Japan as head of the 4th Section (Education and Culture).
 He left for Tokyo on April 1 and began discussions with the U.S. Command General Headquarters (GHQ) the next day.
Because of his gift in languages and his participation in  the original preservation effort he held substantive meetings with all parties without translators.
  In 2 months, over 135,000 volumes were retrieved.
 By the year's end they were back in the hands of the National Central Library where they form the core of the rare books collection today.
 Many other university and museum collections were also retrieved.

After 1949 and with the excesses which followed the Chinese Civil War, his closest friends and associates from the early years were on the mainland.
 His closest recent associates were in Taiwan.
 He himself favored neither side and preferred non-violence.
  He didn't participate in any government activities after 1960 but kept in touch with a network of old friends in Taiwan and U.S. including Li Shu-hua 李书华,   Zhu Jiahua 朱家骅, Gu Mengyu 顾孟余,  Y. H. Ku,  Zhu Shiming 朱世明, Shang Zhen.. .
 Moved to the US with his wife in 1965 to join his children.
 Died February 2, 1986 in Atlanta.
In the 1940s he worked primarily for the Chinese Ministry of  Educatin  and National Central Library in the areas of antiquities, education and publications.  A lasting achievement was to recover the works of the Rare Book Preservation Society   (文献保存同志会) which were looted during World War 2. It began with the Yuyuan Road Conferences (愚园路会议) in 1945–1946 to identify the wartime booty that Japan took.  Key members included Jiang Fucong, Ma Xulun, Zheng Zhenduo, and Zhang Fengju.   Official Yuyuan Road 愚园路会议 Ministry conference minutes shows signatures of the conference attendees. Zhang Fengju 张凤举 is the lower signature of the 1st line .
March 23, 1946, the Ministry appointed Zhang Fengju to the Chinese Occupation Mission in Japan as head of the 4th Section (Education and Culture).  He left for Tokyo on April 1 and began discussions with the U.S. Command General Headquarters (GHQ) the next day. Because of his gift in languages and his participation in  the original preservation effort he held substantive meetings with all parties without translators.   In 2 months, over 135,000 volumes were retrieved.  By the year's end they were back in the hands of the National Central Library where they form the core of the rare books collection today.  Many other university and museum collections were also retrieved.
After 1949 and with the excesses which followed the Chinese Civil War, his closest friends and associates from the early years were on the mainland.  His closest recent associates were in Taiwan.  He himself favored neither side and preferred non-violence.   He didn't participate in any government activities after 1960 but kept in touch with a network of old friends in Taiwan and U.S. including Li Shu-hua 李书华,   Zhu Jiahua 朱家骅, Gu Mengyu 顾孟余,  Y. H. Ku,  Zhu Shiming 朱世明, Shang Zhen.. .  Moved to the US with his wife in 1965 to join his children.  Died February 2, 1986 in Atlanta.
Zhang Dinghuang