Have you ever typed your name in quotes and searched it on Google? It's interesting to see the other people who share your namesake. Here are links to a few other John DeMarco's. My favorite is John DeMarco the Entertainer. (You don't know how many hours it takes me to get myself to look like Kenny Rogers).
John DeMarco the Entertainer
John DeMarco the Paranormal Investigator
John DeMarco the Patent Attorney
John DeMarco the Karate Champ
John DeMarco the Counselor