I am looking for my Montgomery family tree. Where can I get info on my ancestors and where did they come from?

Guys. I am researching history of the Montgomery Family. Where can I find info on my ancestors, where they came from and my family tree? I never did a power point on the history of the Montgomery family and I need you to help me find info and good facts about the Montgomery family history. So, where did the first Montgomery family came from? I need help with this project on the Montgomery Family history. Also I am working on a paper about my family tree and my last name is Montgomery and where can I find a copy of the Montgomery family tree? I am working on this for my parents so they can learn about our history. Please help! Should I look for the history of the Montgomery family on the web? Thank you! Can you help me with this project?