SIEBERHAGEN B.M.M. nee V. SCHALKWYK 1858-1934
SIEBERHAGEN Willem Frederick 1847-1918
SIEBERHAGEN Willem Frederick 1847-1918 & B.M.M. V. SCHALKWYK 1858-1934
SIEBERHAGEN Willem Frederick 1847-1918 & B.M.M. V. SCHALKWYK 1858-1934