These documents provided context for the evangelical effort and conditions in China as early as the 1920s. While these documents may also be available in other repositories, the author is in possession of these documents as family artifacts and used them in writing Lambs of Cavalry.
Spoiler Alert: Since the novel is based on a true story inspired in part by these documents, the documents contain plot points. It’s recommended to read the novel first, you can purchase the novel here.