Anatol Rapoport | Michael Rapoport | Chaim Rapoport | Samuel Mitja Rapoport | Bernard Rapoport |
However, due to lack of comments regarding the sources for the Second Collection, many documents which passed through Firkovich's hands were promoted as skeptic among some Hebraists (Chwolson, S. L. Rapoport, A. Neubauer, Julius Fürst, Heinrich Grätz, Strack and Harkavy etc.).
H. Grätz, Harkavy, and D. Kaufmann claim that he, with the other three scholars, came from Babylonia, while S.J. Rapoport, I.H. Weiss, and Isaac Halévy give Italy as his birthplace.