One of the great challenges that will face the historian who tackles Thai Protestant history after World War II is the proliferation of foreign mission agencies working in Thailand. They come from around the world and their personnel speak a diversity of languages, represent a variety of cultures, and run the gamut of theological persuasions, though they tend to be theologically conservative, although not exclusively so. Recently, I came across information on the Wisconsin Evangelical Lutheran Synod (WELS) mission in Thailand, a mission that I personally have been only vaguely aware of. There is little historical information on this mission widely available, and I have taken the liberty of turning two relevant pages into a four-page pdf, which is available (here) and cited in the bibliography of materials related to Christianity in Thailand. If you are interested in the links to the information, they are cited at the end of the pdf.
This is the first time, as far as I can remember, that I have actually created a somewhat artificial document and placed it in the bibliography. I don't plan to make a habit of it. However, the goal here is always to facilitate access to information about the church's past in Thailand, and this "artificial" document from the WELS mission does that.