Jan de Boer was born in 1859.
Jan Hendrik de Boer was born in 1899.
Jan de Boer died in 1941.
Jan Hendrik de Boer died in 1971.
Klaas Jan de Boer goes by Klaassen.
Jan Gerard Wessels Boer was born in 1936.
Betty de Boer was born in 1971.
Leo de Boer was born in 1953.
René de Boer was born in 1945.
Hannes de Boer was born in 1899.
Remmelt de Boer was born in 1942.
Ad de Boer was born in 1946.
Margreeth de Boer was born in 1939.