Alexander Russell Webb

"A Theosophist, Mohammed Alexander Russell Webb converted to Islam in 1888, largely as a result of his reading. He was the only speaker for Islam at the Chicago Parliament of Religions in 1893. He was the second American ever to convert to Islam." 

Biography

 * Umar F. Abd-Allah, A Muslim in Victorian America: The Life of Alexander Russell Webb (New York: Oxford University Press, 2006).