yes he had another son called Yam, Yam was among the drowned because he was an unbeliever, some say that there is a contradiction in the Qur'an where it says all of Noah's family was saved but later says Yam was drowned, but the Qur'an has already made it clear that God did not Consider Yam to be of Noah's Family.
{And Noah called to his Lord and said, "My Lord, indeed my son is of my family; and indeed, Your promise is true; and You are the most just of judges! , He said, "O Noah, indeed he is not of your family; indeed, he is [one whose] work was other than righteous, so ask Me not for that about which you have no knowledge} { Hud, 45-46 }
that said, he might've had other sons who were not mentioned in the Qur'an or Sunna.
http://en.wikipedia.org/wiki/Sons_of_Noah
