https://www.christianity.com/church/church-history/timeline/1801-1900/samuel-adjai-crowther-11630605.html
Samuel Adjai Crowther | Christianity.com
Samuel Adjai Crowther
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https://www.bu.edu/missiology/missionary-biography/c-d/crowther-samuel-adjai-or-ajayi-c-1807-1891/
Crowther, Samuel Adjai [or Ajayi] (c. 1807-1891) | History of Missiology
crowther samuelhistory ofajayi