Sounds right, thank you. I understand each gospel to have a different theology, tracking with the process of leaving Jerusalem as the focus.

Any edits could also have been done to try & harmonize the gospels later in a mistaken idea that they were intended to be four contemporary accounts of the same story.

I wonder if Andronicus in Romans 16:7 could be Andrew, who seems to have a special status, as seems to be reflected as well in the Muratorian Canon.

I think it's important to assume high narrativity between the NT books. They are views on the same story in different perspectives, and so associations between different books should be contemplated as the same cast of characters.

For example, I see 2 John as the Beloved Disciple writing to Mary. She had been entrusted to him by Jesus, but in flight was unable to discharge that obligation, and so he writes.