Looking for - Children of Charles Collazo

The other day I found out that I was not the only child my father had, and since that day my mind has been wondering if they are still out there. My father passed away about 6 years ago and to this day my heart still aches to see him, to talk to him, and to hug him. My fathers name is Charles Collazo and he was in the U.S. Coast Guard back east somewhere in Massachusetts. He has three sisters and he is the only boy. His sisters names are Carol Ann, Frances Jean, and Mrs. Ernie Noocon ( Tootsie is her nickname ).My father died of a cancer called Mesithiloma ( rare lung cancer formed from asbestos ). My father always talked to my mother about his other children but never to me. I was told by my mom that he may have between 3 and 4 children from diffrent women. I would really like to find out if they are still alive and if they are okay. If I do have other siblings they are for sure older than me, being that I am only 22 years old. All of the information that I have is so scattered that I wish I had more to say but I am desperate to find any clues to the whereabouts of my missing family members.My father was about 57 to 58 years old when he died in January of 1994. He would have been 64 or so years old up to this date

Because my father died and I would atleast like to let my other siblings know that there is someone out there that is their blood and I would also like to tell them about my fathers last days.