This online appendix presents the data for two book chapters by Tommy Wasserman. The first is Tommy Wasserman, “New Traces of an Old Text: The Corrections of Gregory-Aland 424 in Acts 1–14.” Pages 51–68 in The New Testament in Antiquity and Byzantium: Traditional and Digital Approaches to its Texts and Editing. A Festschrift for Klaus Wachtel, ed. H.A.G. Houghton, David C. Parker, Holger Strutwolf (ANTF 52. De Gruyter: Berlin and New York, 2019). The second is forthcoming in 2021.