• Die eerste Voortrekkers 

      Thom, Hendrik Bernardus, 1905-1983
      Article on the first "Voortrekkers" or pioneers who left the Cape in the early 18th century, before the Great Trek, written for the magazine "Die Huisgenoot", 11 December 1936.
    • Die laat agtiende-eeuse oorgrensboer 

      Thom, Hendrik Bernardus, 1905-1983
      Paper on the late 18th century trans frontier farmers in South Africa delivered in Worcester, October 1936.