Pieter Feenstra, born in Achlum on March 7, 1890, son of Dirk Cornelis Feenstra (carpenter's man and farmer) and Hittje Hiemstra.

Pieter was married in Barradeel on May 17, 1913, at the age of 23 to
Riemke Nieuwland (aged approximately 22 years), born circa 1891 (?).