I am going to self-pub a small poetry book, mostly for family and friends. I have taken most of the photos, and the ones I haven't taken, I've been granted copyright. Except for TWO. I have tried and tried to reach the photographer. Is the best advice to drop those two and take originals because I sure don't want to infringe on copyrights? What would you do? I have found the photographers through flickr posts, tumblr posts, and "I Heart This" (fun web site, that one!)