 John Clements Wickham 21 November 1798 - 1 January 1864 aiva muongorori weScotland, mukuru wehondo, mutongi uye mutariri. Akanga ari mukuru mukuru wokutanga mukati merwendo rwayo rwechipiri rwokuongorora, 1831-1836, pasi paKaputeni Robert FitzRoy. Nyanzvi yezvemhuka uye yezvokucherwa kwevhu Charles Darwin akanga ari mutevedzeri ari mungarava, uye bhuku rake renhoroondo rakabudiswa seRwendo rweBeagle. Pashure penzendo iyoyo, Wickham akakwidziridzwa kuva Commander ndokuitwa kaputeni weBeagle parwendo rwayo rwechitatu, kubva muna 1837 uye akaitisa nzendo dzakasiyana-siyana dzegungwa uye kuongorora kwemvura pamhenderekedzo yeAustralia. 