┌── Jacob Brinksma (Saturday 29 January 1876 Oosterwolde, Ooststellingwerf, Friesland, Nederland - Date unknown)
│ ┌── Marcus Mast(Wednesday 08 May 1839 Smilde, Drenthe, Nederland - Saturday 12 September 1896 Kloosterveen, Smilde, Drenthe,
│ │   Nederland)
└── Antien Mast (Monday 14 December 1874 Kloosterveen, Smilde, Drenthe, Nederland - Date unknown)
└── Hendrikjen Roelofs Postema(Sunday 17 December 1837 Nijeberkoop, Ooststellingwerf, Friesland, Nederland - Friday 04
  September 1908 Kloosterveen, Smilde, Drenthe, Nederland)
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