the apoostle John was there, and he wrote 4 books
Peter was there and he wrote 2 and maybe a third, also
Paul was there, saw Jesus, didnt even believe on Him until after He died but saw him die, he wrote over 10 books
"Although ancient traditions attributed to the Apostle John the Fourth Gospel, the Book of Revelation, and the three Epistles of John, modern scholars believe that he wrote none of them." Harris, Stephen L., Understanding the Bible (Palo Alto: Mayfield, 1985) p. 355
The Gospel of Peter (Greek: κατά Πέτρον ευαγγέλιον), or Gospel according to Peter, is one of the non-Canonical gospels which were rejected as apocryphal by the Church Fathers and the Catholic Church's synods of Carthage and Rome, which established the New Testament canon.[1] It was the first of the non-canonical gospels to be rediscovered, preserved in the dry sands of Egypt. A major focus of the surviving fragment of the Gospel of Peter is the passion narrative, which is notable for ascribing responsibility for the crucifixion of Jesus to Herod Antipas rather than to Pontius Pilate.
-Wikipedia
There’s no indication from Scripture that Paul and Jesus ever met before the Damascus Road incident. And Acts 9:4-7 doesn’t specify whether the Lord’s encounter with Paul was physical or not. It only says Paul saw a bright light and heard a voice. The men with him heard a loud sound but didn’t see anything. In subsequent re-tellings of the encounter Paul never indicated that He had actually seen Jesus at that time.
source: http://gracethrufaith.com/ask-a-bible-teacher/did-paul-ever-meet-jesus/
Regards,