Jacob Tomlin was a Protestant Christian missionary who served with the London Missionary Society during the late Qing Dynasty in China. Tomlin and Karl Gutzlaff were the first Protestant missionaries to reside in Thailand, arriving in 1828.
Tomlin, Jacob (1844). Missionary Journals and Letters London: James Nisbet and Co. [digitized by University of Hong Kong Libraries, Digital Initiatives, "China Through Western Eyes." ]