Paul (Apostle) says Jesus has a brother, James.

Date: 50 - 60 AD
Type: Manuscript
Source: Paul
Ancient
Hearsay: 2nd Hand
Translation
Late
Reference: Paul, Epistle to the Galatians, Galatians 1:19, Codex Sinaiticus
Scribe/Publisher: N/A
People: James (Brother of Jesus), Paul, Jesus Christ
Audience: Galatia
Transcription: King James Version: 18 Then after three years I went up to Jerusalem to see Peter, and abode with him fifteen days.
19 But other of the apostles saw I none, save James the Lord’s cbrother.
20 Now the things which I awrite unto you, behold, before God, I lie not.
Source Link: http://www.codex-sinaiticus.net/en/manuscript.aspx?book=40&chapter=1&lid=en&side=r&verse=19&zoomSlider=0
Citations in Mormonr Qnas: Historicity of Jesus