How many were in the family of Jesus?
Mark 6:3 says:

3. Is not this the carpenter, the son of Mary, the brother of James, and Joses, and of Juda, and Simon? And are not his sisters here with us? And they were offended at him.

BYU Education Week Instructor, Dr. David Ridges, author of the N.T. Made Easier, page 167, has said: “(The citizens of Nazareth could not accept that Jesus was anything but a common man). Verse three, above, gives us information about the size of Joseph and Mary’s own family, which they had after Jesus was born.

They had four sons, whose names are mentioned in this verse and at least three daughters. The Greek plural form for the word ‘sisters’ in verse three means three or more.

It is also interesting to note that it is generally believed that James, one of Christ’s half-brothers mentioned in this verse, (the writer of James 1:5, ‘if any of you lack wisdom, let him ask of God,’ that led Joseph Smith to pray), was the writer of the book of James in the New Testament. (See Bible Dictionary under ‘James, Epistle of.’)