Sally,
Do not take any info as definite until you have proven it for yourself.
This site justs helps people get an idea where to start looking.
I recommend (and this is just purely personal) to add a person to your tree, with lots of comments, so when you visit the same info in a years time, you know why you may have addded a person. You will be surprised how far advanced you can be in your understanding of this subject after such a short period of time.
Persevere, this search is a lot easier if you make a note of every (maybe) useful bit of info, and then a year or even six months down the line, it all clicks.
Kevan