Rubuta ci gaba don wannan sakin layi - Johannes Jacobus Posthumus (24 Satumba 1887 a Gouda <unk> 12 Disamba 1978 a Utrecht) ɗan wasan motsa jiki ne ɗan ƙasar Holland wanda ya yi gasa a wasannin Olympics na bazara na 1908. Ya kasance wani ɓangare na tawagar 'yan wasan motsa jiki na Dutch, wanda ya gama na bakwai a wasan rukuni
Ka yi haƙuri. A cikin gasa ta kowane mutum ya gama na 66.