Maybe try genealogy sites, if you know his/her former names? I tried to get in touch w/my best friend from high school (not the one I married!), but she didn't want contact because she has "changed her life." She married a guy right out of h.s. due to being pregnant & I guess things didn't go very well. She wants no contact w/her "past life."--Suzy

Almost, like an adoptive child seeking her/his bioligical parents & finding out that the bioogical parent does not want any thing to do w/them...