1  Hartgerd Langman (25 Mar 1865 Buurmalsen, Gelderland, Netherlands – 12 Apr 1942)   +  Aaltje Koelma (25 Oct 1863 Weststellingwerf, Friesland, Netherlands – 5 Aug 1930)      2  Johannes Langman (23 Apr 1894 Steenwijk, Overijssel, Netherlands – 25 Dec 1896)      2  Johannes Langman (23 Apr 1896 Steenwijk, Overijssel, Netherlands – 14 Jun 1902)      2  Renske Langman (20 Oct 1899 Steenwijk, Overijssel, Netherlands – )