Dee ihe na-aga n'ihu maka paragraf a - A mụrụ Birger Carlstedt na Helsinki nye onye ọchụnta ego John Wilhelm Carlstedt na onye na-ere nri Amanda Josefina Lindström. Carlstedt nwere nwanne nwoke tọrọ ya nke nwụrụ mgbe ọ bụ nwata na nwanne ya nwoke nke obere, Knut Wilhelm. E kwuru na ụmụnne abụọ ahụ dị n'ezigbo mma. A mụrụ Knut n'afọ 1910 ma nwụọ n'agha oge oyi
Ọ dị mma.