The USC Digital Library in Southern California has a Pentecostal and Charismatic Research Archive (PCRA) with important collections, including digitized Osijek, Croatia Records from the Evangelical Theological Seminary. This collection documents “the beginnings and early development of the Pentecostal movement in the southeastern European regions of the former Yugoslavia (Slovenia, Croatia, Bosnia and Herzegovina, and Serbia). Printed documents and photographs cover a hundred-year period from the early 1900s to the first decade of the present century. Also included are some 1000 photographs of the Evangelical Theological Seminary and its students, and of local churches in former Yugoslavia.”
There are many subcollections of interest to genealogists and researchers interested in Croatian church history.
Minutes and records of Converted members for Pentecostal Church in Osijek