Sjoerd Eelkes Boonstra
- Born: 13 Jan 1801, Garijp (Garyp) Tietjerksteradeel Friesland Netherlands
- Christened: 22 Feb 1801, Garijp (Garyp) Tietjerksteradeel Friesland Netherlands
- Marriage: Hijlkjen Folkes Fennema on 10 May 1828 in Bergum (Burgum) Tietjerksteradeel Friesland Netherlands
- Died: 30 Dec 1865, Bergum (Burgum) Tietjerksteradeel Friesland Netherlands at age 64
Sjoerd married Hijlkjen Folkes Fennema, daughter of Folke Folkerts Fennema and Nieske Alberts de Boer, on 10 May 1828 in Bergum (Burgum) Tietjerksteradeel Friesland Netherlands. (Hijlkjen Folkes Fennema was born on 20 Feb 1803 in Sumar (Suameer) Tietjerksteradeel Friesland Netherlands, christened on 3 Apr 1803 in Garijp (Garyp) Tietjerksteradeel Friesland Netherlands and died on 28 Feb 1884 in Garijp (Garyp) Tietjerksteradeel Friesland Netherlands.)
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