Looking for my children

I am looking for my children. I believe that they have been adopted out by now. 4 boys and a girl. The first boy was born on Jan. 20, 1991 - next: Jan. 17, 1992 - next: Aug. 26, 1995 - next: May 14, 1995 - and the girl: Nov. 5, 1998. If anybody has any information that can help me, please let me know. I would love to know how they are and what they look like now days. It has been 8 years since I have seen them. Thank You A Birth Mother