Letter from Engstrom to Herbert J. Taylor, 1959, showing Engstrom at building an alliance in order to strengthen Evangelical agencies' work among young people. Taylor was a very influential Christian businessman in Chicago, who was instrumental in providing resources and direction to launch ministries to young people like Youth for Christ, Young Life, Christian Service Brigade, Pioneer Girls, InterVarsity and more. Taylor also contributed leadership to citywide evangelistic events like Billy Graham's 1962 and 1971 crusades.