Digital+Footprint

So- I have a question. How can I capture all the items/names I've created for my digital footprint and direct them to me, the real me AND eliminate those that really aren't me, but have the same name. For instance- Professionally I refer to myself as Katherine Knowlton Allen. Casually I go by Katie Allen. I use the moniker ktkallen because, well, it is a very long story relating to college. But I use it because I started out using it early on in my online life. How can I get Google to recognize that all those names collectively point to one me?

To the second point of my question; how to I lose those who have the same name but really aren't me? Because there is a Katie Allen, or a Katherine Allen who writes erotic adult books. (I swear it really isn't me!!) I'd love to lose that name alignment. The Katie Allen who is a 22 year old aspiring model I could keep...

Also-with the popularity of Kris Allen's (the American Idol winner from last year) wife Katy- my digital footprint on Google has been diminished.