Leonard Ravenhill

Leonard Ravenhill (18 June 1907 – 27 November 1994) was a British Christian evangelist and author best known for his focus on prayer and revival, particularly through his influential book Why Revival Tarries, which sold over a million copies worldwide[1][8]. Born in Leeds, England, he later moved to the United States in 1958, where he became a passionate preacher of revival and mentored notable leaders like Keith Green and A.W. Tozer[2][8].

Leeds, England Jun 18, 1907 Wikipedia
Christian Evangelism Prayer Revival