The apostle Thomas was also known as Didymas (the twin) however as to who his twin was, it's not known. He was a fisherman by trade and a native of Galilee.
After the resurrection of the Lord Christ Jesus, Thomas went to Babylon. It is believed that he established the first Christian church there. He is
also known to have gone to Persia and from there he went to India and preached the Gospel making many converts. It is also believed that the apostle Thomas evangelized as far as China, and while in India, he suffered martyrdom; being killed with a lance (he was buried in Mylapore, India, which is now a suburb of Madras.) The apostle Thomas is said to have been a fearless evangelist and a great builder of churches.
Source: The Search For The Twelve Apostles, William McBirnie, PH.D
Simon (Peter)
James (son of Zebedee)
James (son of Alphaeus)
Jude (Thaddaeus)
Simon (the Zealot)
Saul (Paul)
