Michael, often these early bible entry's were not written by the owner but by the clergy of their local church and even possibly by the local registrar because of reasons of illiteracy I am not suggesting that in your case but the bible I have has obviously been entered by the registrar and I realized that after seeing his signature on certificate records and other documents showing that my ancestral grandparents signed with an X, Also, looking at the writing on your pages you can think that it may have been penned by the same person and on the same day. The pen strokes are beautiful. Keep it safe and close, it is a treasure.