Cross reference
Acts 15:37
37 Barnabas planned to take John, who was called Mark, with them also.
Acts 12:12
12 Thinking about that, he came to the house of Mary, the mother of John whose surname was Mark, where many were gathered together and were praying.
Acts 12:25
25 Barnabas and Saul returned to{TR reads "from" instead of "to"} Jerusalem, when they had fulfilled their service, also taking with them John whose surname was Mark.
Acts 13:5
5 When they were at Salamis, they proclaimed the word of God in the synagogues of the Jews. They had also John as their attendant.
Acts 13:13
13 Now Paul and his company set sail from Paphos, and came to Perga in Pamphylia. John departed from them and returned to Jerusalem.
Colossians 4:10
10 Aristarchus, my fellow prisoner greets you, and Mark, the cousin of Barnabas (concerning whom you received commandments, "if he comes to you, receive him"),
2 Timothy 4:11
11 Only Luke is with me. Take Mark, and bring him with you, for he is useful to me for ministering.
Philemon 1:24
24 as do Mark, Aristarchus, Demas, and Luke, my fellow workers.