gunther ~ It's been a long time since you've been on here, but I thought I'd tell you that for the name Vallejo, it appears that Valley Joe (in America) is a very common nickname (there's a town by that name in northern California). I am assuming he is American, correct? I'm also assuming he is at least 61 or 62 years old. I'm not sure what the best way is to locate him, but you can try peoplefinders.com and it will often list ages, towns and possible relatives. Then, you can try zabasearch.com for addresses (sometimes phone numbers). There are a lot without ages, but there are often repeats of the same person as well. If you do this, make sure you have a pen and paper to jot down information. Keep two screens open for the internet. It saves time when you need to go back and forth while searching. Good luck to you.