Startup Idea : Past, Present , Future

Hey, My idea is to connect all the family members of once at one place, its a kind of web in which we can easily check the relation of us with others just like the E-R Model. This idea can be beneficial to lot of matrimonial site in which a person can check out the family of other., this might be useful in case of any reference, i mean in each family some one is surely their who is in big post or one by whom we can take help and might be we font know that someone exist in our family. But with this app or social network we can get to know everyone in our family. And in future we can have our past save and our next generation can see and check out the relation with their ancestral. Pls connect with me for more discussion on the same.