In *Stanley H. Frodsham: Pentecostal Pioneer*, Dr. Michael H. Yeager brings to life the compelling story of one of the most influential yet often overlooked architects of early Pentecostalism. From the historic Sunderland outpouring in England to the formative years of the Assemblies of God in America, Frodsham stood at the very heart of the twentieth century’s great spiritual awakening. As editor of *Confidence* and later the *Pentecostal Evangel*, he shaped doctrine, defended Spirit baptism with the evidence of tongues, and preserved firsthand accounts of miracles, missions, and revival fires spreading across the globe. His landmark book *With Signs Following* became one of the earliest and most trusted records of the Pentecostal movement, giving future generations a living testimony of God’s supernatural work. When controversy erupted during the Latter Rain revival, Frodsham remained unwavering in his belief that God was restoring apostolic ministry and preparing the Church for Christ’s soon return. Though misunderstood by some, his prophetic voice continued to call believers to holiness, restoration, and end-time readiness. This inspiring biography reveals a man of devotion, conviction, and spiritual courage—a historian of revival who gave Pentecostalism its memory and dared to proclaim that the latter-day glory would exceed the former.