How to locate and contact homeowners

[Jason Hodge]

Hey guys, I did some driving for dollars earlier today. I found two properties in the same neighborhood that were distressed and unoccupied. I looked up both properties and found the addresses of the property owners. The problem I'm finding is that one of the property owners has a PO Box in another city, and I'm trying to see if there is a better way to get in contact with him. What other resources are available for me?