Hans Waitz
Johannes Waitz, also Hans Waitz, was a German Biblical scholar specializing in the New [Testament Apocrypha] and source-critical studies. He was an Evangelical pastor in Darmstadt until 1927, and not to be confused with the Austrian Catholic bishop of the same name.
He was the advocate of a Petrine source text for Acts 8:5-25. and attempted to identify Papyrus [Oxyrhynchus 840] as part of the lost Gospel of the Nazarenes. Waitz was the first to recognize parallel accounts in the two major pseudo-Clementines and postulated a "basic document" dated to the third century.