Charles Fox Parham (1873-1929), minister, author and one of the founders of the modern Pentecostal Movement, was born in Muscatine, Iowa. Parham came to believe in divine healing after recovering from rheumatic fever and subsequently became an independent Holiness preacher, centering his teaching around divine healing, sanctification as a second work of grace, and Spirit baptism i.e. speaking in tongues.
Along with William Seymour, Parham played an instrumental role in the Azusa Street revival (1906-09) in Los Angeles. Although plagued by troubles and controversies towards the end of his ministry, Parham provided the movement with a defined theological corpus through his bi-monthly publication Apostolic Faith and instilled within the movement a fervent missionary emphasis.
For further reading see James R. Goff, Jr., Fields White Unto Harvest: Charles F. Parham and the Missionary Origins of Pentecostalism (University of Arkansas Press, 1988).