Jan Gerard Wessels Boer was born in 1936.
Jan de Boer was born in 1859.
Jan Hendrik de Boer was born in 1899.
Jan Gerard Kemmerling was born in 1776.
Jan Gerard Palm was born in 1831.
Jan de Boer died in 1941.
Jan Hendrik de Boer died in 1971.
Klaas Jan de Boer goes by Klaassen.
Jan Gerard Kemmerling died in 1818.
Jan Gerard Palm died in 1906.
Gerard Joling's birth name is Gerard Jan Joling.
Jan Christiaan Smuts
Gerard Sekoto