| Children | 
|  | 1. Hester Henriette Jacoba Haitsma Mulier,   b. 19 Nov 1877, Oldeboorn, Friesland, Nederland  d. 1 Dec 1948, 's-Graven, Haarlem, Noord-Holland, Nederland  (Age 71 years) |  |  | 2. Johannes Eco Haitsma Mulier,   b. 1 Nov 1879, Oldeboorn, Friesland, Nederland  d. 10 May 1938, Taormina, siciliĆ«  (Age 58 years) |  |  | 3. Maria Louisa Haitsma Mulier,   b. 10 Jul 1883, Oldeboorn, Friesland, Nederland  d. Yes, date unknown |  |  | 4. Gerard Haitsma Mulier,   b. 27 Apr 1887, Winterswijk, Gelderland, Nederland  d. 2 May 1967, Hilversum, Noord-Holland, Nederland  (Age 80 years) |  |  | 5. Syo Kornelius Haitsma Mulier,   b. 27 Apr 1887, Winterswijk, Ned  d. Yes, date unknown |  |  | 6. Aleida Haitsma Mulier,   b. 12 Apr 1889, Winterswijk, Ned  d. 17 Mar 1980 (Age 90 years) |  |