Both papers included in this book were presented at the Society for Pentecostal Studies. The first paper, although heavily edited to fit the format, was published in vol. 30 (2010) of Assemblies of God Heritage magazine under a new title, "Ivan Voronaev: Slavic Pentecostal Pioneer and Martyr." Some of the historical data we presented in the article was published openly for the first time. Our research was further mentioned in the December, 2010 AG Heritage editorial. The Bulgarian "Evangel" also published our translations of Voronaev's correspondence. In 2011, Vladimir Franchuk, translated...