
Nat,
I can talk with some authority on this, makes a change :-), to start you need to find as much info from/about relatives as you can.
Things like name date of birth,marriage death(where applicable :-) ) Where they took place who too. If you can find these out for a few generations back you will be of to a flying start.
Next port of call is the biggest library you can get to where you will be able to use the info you have to trace further back still using their records. You could go to the library now and get a book on tracing your family tree as this will be a big help. Your library may have sheets you can fill in like pedigrees but with room for other details I mentioned.
There are also programmes you can buy for your computer to store all your research, but bother me if I can remember what the good one is called, I will find out tomorrow.
I know all this because when I worked in the library these enquiries were a large part of our local history department's work.
Hope this helps, also hope you meant your ancestry not dogs or I am going to look a right plonker, but I'm used to that,
Anne :-D