Series I. Personal Correspondence and Writings consists of letters from Liang, Lin, and others and copies of three letters and stories by John and Wilma Fairbank. There are about 700 pages in total, 90 percent of which is letters sent by Liang and Lin to the Fairbanks between 1935 and 1948. According to Hu Jingcao, a documentary film maker, the other half of the correspondence, the part that had been sent to China during this period, was destroyed in the Cultural Revolution. "According to the recollections of Liang Sicheng’s second wife Lin Zhu, Liang kept these letters for a long time, but after repeated raids on his home in the Cultural Revolution, he finally decided to destroy what could have been lethally disastrous evidence of intimate dealings with American imperialists."