Children:
- Federico Madarieta Aboitiz was born on 17 Jul 1929 in Ispaster, Bizkaia; died on 4 Nov 2009 in Edinburg, Texas .
- 7. C. Madarieta Aboitiz
- Jacinto Madarieta Aboitiz was born in Ispaster, Bizkaia; died on 18 Apr 2001 in Bountiful, Utah.
- Victoria Madarieta Aboitiz
- Paulino Madarieta Aboitiz was born on 24 May 1937 in Ispaster, Bizkaia.
- R. Madarieta Aboitiz
- Begona Madarieta Aboitiz
- Jose Miguel Madarieta Aboitiz was born on 29 Sep 1944 in Ispaster, Bizkaia; died on 14 Jun 2004 in Pocatello, Idaho.
- A.M. Madarieta Aboitiz
- S. Madarieta Aboitiz
- Juan Antonio Madarieta Aboitiz was born on 22 Nov 1948 in Ispaster, Bizkaia; died on 14 May 2016 in Twin Falls, Idaho.
- Y. Madarieta Aboitiz
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