The Benjamin Luther Osborn Family Tree

I have just started the research on the Osborns.We are all from Alabama and have been there for at least 100 years, there's rumor that they moved there from Mississippi and have been traced back to 1800 in Mississippi.I guess researching will reveal if that's true or not.I should be able to also prove or disprove the tale that Jesse James' mother was a sister to my Great-Grandfather.