As we know, Rockman was the second earliest fountain pen manufacturer in China which was confirmed by documents. However, there are a lot of mistakes in Rockman's history, especially Ning Sihong宁思宏's memoir, who was the former shareholder, trustee, manager and director of Rockman after 1946.9. The four kinds of histories about Rockman were mainly based on his memoirs. I'd like to rebuild Rockman's history here with what I collected. Notice: William Kwan Rockman(Wm. K. Rockman) = Guan Leming关勒铭. All the name of people but William Kwan Rockman will be Pinyin. I will add a list about the name and their romanization at last. People's names are in Simplified Chinese. Books', magazines', newspapers' and companies' names are depended on the periods. Modern Source means the four kinds of histories which are mainly based on Ning Sihong memoirs. Modern Source about Chen Sisheng陈巳生 is a brief biography written by his home town. I also bought some documents su