John Mark was born in c. AD 15 (in the Hebrew calendar) in the Roman province of Judea.
Blessed are you, LORD our God, King of the universe, by the hand of Mark the evangelist you have given to your church the good news of Jesus: We thank you for his witness, and pray that you will give us grace to know the truth, and not to be carried about by every wind of false doctrine, that we may know Jesus the Messiah as our Lord and Savior; who lives and reigns with you and the Holy Spirit, one God, now and forever. Amen.
The Book of Common Prayer. Huntington Beach, CA: Anglican Liturgy Press, 2019. p. 628.
Strong, James. Strong's Exhaustive Concordance of the Bible: Updated and Expanded Edition. Peabody, MA: Hendrickson, 2007.