Bauke Pieters Loonstra
- Born: 2 Mar 1856, Westergeest Kollumerland Friesland Netherlands
- Marriage: Antje Folkerts Fennema on 6 Apr 1889 in Buitenpost Achtkarspelen Friesland Netherlands
- Died: 1 Mar 1894, Buitenpost Achtkarspelen Friesland Netherlands at age 37
Bauke married Antje Folkerts Fennema, daughter of Folkert Folkes Fennema and Grietje Sipkes Boringa, on 6 Apr 1889 in Buitenpost Achtkarspelen Friesland Netherlands. (Antje Folkerts Fennema was born on 25 Mar 1857 in Buitenpost Achtkarspelen Friesland Netherlands and died on 5 May 1941 in Eastermar (Oostermeer) Tietjerksteradeel Friesland Netherlands.)
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