Pedzisa mutsara unotevera: Johannes Jacobus Posthumus (24 September 1887 muGouda <unk> 12 December 1978 muUtrecht) akanga ari muDutch gymnast uyo akakwikwidza muZhizha reOlympic ra1908. Akanga ari mutezo wechikwata cheDutch chemajimnastics, icho chakapedza chiri chechinomwe mu
chiitiko chechikwata. Mumakwikwi evanhu vose akapedza ari wechi66.