Barnabas
Also known as Joseph, he was first mentioned at the very end of chapter 4. He works closely with Paul both in funding their travel and in evangelism, healing, and teaching. He is mentioned in several letters outside of Acts.

Timothy
Coming from Lystra, he was the son of a Christian Jewish mother and Greek Gentile father, giving him an ideal background to minister to both groups. He would become a partner with Paul in many future travels.

Iconium
This truly ancient city was probably near three thousand years old by the time of the book of Acts. It was one of the targets of the unknown Sea Peoples, attacking during the Bronze Age collapse of 1200BC. The modern name for the city is Konya, in Turkey. It has about the same latitude as San Francisco.

Lystra
This smaller city is almost 20 miles south of Iconium. It probably had a much smaller Jewish population than other cities visited by Paul. Today, there is a small village nearby but the remnants of the old city have not been archaeologically explored.