Trijntje was married to Douwe Cousijn, born circa 1824.
From this marriage:
1 : Sjoerd Cousijn, born in Zurich on September 4, 1871, worker and farmer.
Sjoerd was married in the year 1899, at the age of 28 to Eke Anema (aged 22 years), born in Kimswerd on July 8, 1877, daughter of Sjoerd Anema and Sjoukje Ozinga.