"While He was still speaking to the crowds, behold, His mother and brothers were standing outside, seeking to speak to Him. Someone said to Him, "Behold, Your mother and Your brothers are standing outside seeking to speak to You." (Matt. 12:46,47) "Is not this the carpenter's son? Is not His mother called Mary, and His brothers, James and Joseph and Simon and Judas?" (Matt. 13:55). Unless you reply on some gnostic tradition, the plain reading of the text is that Mary and her other, natural children came to visit Jesus.
The text you posted refers to Jesus' brothers. Many biblical scholars have opined that the term brother can also mean cousin or close aquaintence. It can also be used as a term of endearment. For instance when I walk down the street and a homeless man says to me" "brother can you spare a dime", that doesn't make the man my natural brother.
So, back to what I origianlly asked you: can you provide a scriptural quote which refers to any other children of Mary or Joseph - not brothers of Jesus, but children of Mary or Joseph?