Still another story waiting to be written in Protestant missionary history in Thailand is the impact the earlier generations of missionaries had on the modernization of the central Thai (Siamese) language. They produced the first dictionaries and were among the first Westerners to study the language. In the 19th and 20th centuries, two of the key figures in this story were the Rev. S. G. McFarland, a Presbyterian missionary, and his son, George B. McFarland. Some of the work that they produced can be found online. These include:
- McFarland, George Bradley. English-Siamese Dictionary. Bangkok: American Presbyterian Mission Press, 1903. Available online at the Internet Archive (here).
- McFarland, George Bradley. English-Siamese Dictionary. Bangkok: American Presbyterian Mission Press, 1916. Available online at the Internet Archive (here).
- McFarland, George Bradley. English-Siamese Dictionary. Stanford: Stanford University Press, 1944. Available online at the Google Books (here).
- McFarland, George Bradley. An English-Siamese Pronouncing Hand. 2nd ed. Bangkok: American Presbyterian Mission Press, 1900. Available online at the Internet Archive (here).
