J. R. (Jan Ritskes) Kloosterman

Born in Twijzel on February 23, 1847, Jan Ritskes Kloosterman was a Frisian poet and landowner. Sources describe him as a farmer who soon left the practical side of farming to others, while turning his attention more fully to writing.

He became known for poetry in Frisian that drew strongly on the natural world and often carried a religious tone. His work belongs to the tradition of Frisian-language literature, and his writings have remained accessible through later preservation and digitization projects.

Kloosterman died in 1914, just before his sixty-seventh birthday. He is often mentioned in connection with his daughter, the noted Frisian author Simke Kloosterman, but he also stands as an important figure in his own right within regional literary history.