Ask questions of all family members. That old Family Bible will be one of the best sources of information you can find. Copy the Family Tree Section, the page that says Holy Bible, and the page that gives the date of the bible. Talking to the oldest member of the family will be a wealth of information. Having a tape recorder hand at this meeting would be nice.
Next stop is to buy some supplies.
Remember, no two persons keep records the same. Now it's time to visit your local genealogy department. Don't be bashful. Ask for help. You will need to look through the federal censuses, cemetery surveys, marriage indexes, funeral home books, and family files.