You are guessing.
Each of the disciples probably wrote their own script as there was NO indication whatsoever that any of them were illiterate.
- and therefore YOU are also guessing.
I only accept fact and no facts relate to that subject except one and that is that the vast majority of the Jewish population were unable to read or write and less than 1/10 of 1 percent could. Those were primarily Royalty and the Religious Leaders.
The population listened to the Pharisees recite scripture (Torah) because they could not read. The average citizen used stamps to indicate signature or Romans wrote their name and town in their census. Stamps were produced and recorded by the Pharisees and scribes (usually scribes).
Know your facts and know your history.
PS. Nobody has ever found a city by the name of Bethlehem even though the tourist guides say they think they do - don’t forget that the only “Think” they do. There is no mention of Bethlehem in various writings but they do not tell where it was nor if it was a city or a region of Judea.
The city of Bethlehem was only named such during the crusades because nobody could find “said” city and they found one that fit the basic description so that is how it got on the map. It had a Arabic name and was populated primarily by Arabs.