2004年4月,宋美龄去世后不久,美国胡佛研究院打开了原先处于协议保密状态中的宋子文的19个私人文件箱。过去是负面人物有些失实宋子文在近代史上一直备受争议,外界认为他在抗战及中国内战期间利用蒋宋家族的联姻关系弄权敛财,导致蒋介石和国民党在1949年失去大陆政权。在中国大陆,他是“中国四大家族”的代 In April 2004, shortly after Soong Mei-ling died, the United States Hoover Research Institute opened 19 private boxes of Soong Tze-wen, who was previously in a state of confidentiality under the agreement. In the past, there were some misrepresentations of the negatives. Soong was in controversy in modern history. Outsiders thought that he was using the marriage of the Jiang and Song clans to get money during the war of resistance against Japan and the Chinese civil war, resulting in the loss of mainland power by Chiang Kai-shek and the Kuomintang in 1949. In mainland China, he is the representative of “China’s four big families.”