He is married to Marrigje Luinstra.
They got married on May 20, 1916 at Kollumerland c.a., Friesland, Nederland, he was 31 years old.Source 3
Pieter Loonstra | ||||||||||||||||||
1916 | ||||||||||||||||||
Marrigje Luinstra |
Geboorteregister 1885, archiefnummer 30-01, Burgerlijke Stand Achtkarspelen - Tresoar, inventarisnummer 1046, aktenummer 56
http://www.graftombe.nl/names/info/125461/loonstra
Huwelijksregister 1916, aktenummer 18