African American Heritage

Today some of my friends were looking up their family crests and heritage and were so excited. They looked up my last name,Gilmore and found that it was Scottish and English and all that. They started ranting and raving about how I was Scottish and then I thought about it for a minute. African Americans got their names from their slave masters most of the time. Of course I didn't explain that, but it's true. I am trying to learn more about my heritage because it is very important to know and it's hard because I am African American. If anyone has any ideas as to how I can come up with this information please let me know.