[header] How to find your old school friends for free [title] Use google. It may sound obvious, but you will probably be amazed at the wealth of information that can be garnished from your google searches. [step] In the first instance, you could do a specific search such as " john smith ". 
In order to connect the name with a city or town (if you have that information) you could do " john smith " + dallas. This search technique could also be applied if you have the name of the high school that he attended.