Here are a few verses to start with on the siblings:
Mat 13:55 Is not this the carpenter's son? is not his mother called Mary? and his brethren, James, and Joses, and Simon, and Judas?
Mar 6:3 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.
Mat 27:56 Among which was Mary Magdalene, and Mary the mother of James and Joses, and the mother of Zebedee's children.
Mar 15:40 There were also women looking on afar off: among whom was Mary Magdalene, and Mary the mother of James the less and of Joses, and Salome;
Mat 12:46 While he yet talked to the people, behold, his mother and his brethren stood without, desiring to speak with him.
Mat 12:47 Then one said unto him, Behold, thy mother and thy brethren stand without, desiring to speak with thee.
Mat 12:48 But he answered and said unto him that told him, Who is my mother? and who are my brethren?
Mat 12:49 And he stretched forth his hand toward his disciples, and said, Behold my mother and my brethren!
Mat 12:50 For whosoever shall do the will of my Father which is in heaven, the same is my brother, and sister, and mother.
And thats the bottom line, because God's Word said soYou Get"TWO"Thumbs UP