The Y-chromosome is one of the two sex chromosomes that form one of the 23 pairs of chromosomes in each cell. The Y-chromosome is present in males, who have one X and one Y chromosome. The Y-chromosome is passed down through the male family line.
With so much information that you will be collecting, it can get confusing, so using a computer genealogy program helps to keep this information organized.
Before 1790 you can use Tax Lists and other local lists that might have been compiled according to the state you are researching in.