Johannes 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.

...
Wikipedia