It annoys me intensely when people copy material without acknowledging the source, especially photos. Some of it can be chased up via copyright but probably not all. Stories/biographical information that you have written certainly are copyright, but simple birth/marriage/death places/dates are probably to be regarded as information in the public domain, no matter how long it took you to find them, and therefore not copyright. I am not sure that you can claim copyright on pictures on which the copyright has expired simply by scanning them and putting them on line or printing them (at least in the UK), what part of that is your intellectual property? As has been said several times, if you don't want it copied don't put it on-line.
Robert
Masie, just picked up your message as I was posting. The old scientific definition, with a bit of tongue in cheek, was that copying from one source was plagiarism while copying from two or more sources was original research - provided you cited your sources!