Should I call - Wrong one

Well, I finally got up my currage and called. I asked the gentleman that answered if he had graduated from my high school in the same year. He indicated that this must be his son. With hope, I got another phone number. With more time passing and sweaty palms again, I called. I asked the same question and the responce was, nope. He graduated 13 years later.

This is both a relief as well as a let down. A relief in that my sweaty palms can take it easy for a while. But a let down, because now I have to continue my search.