does anybody know?

[j r]

can someone assist me in tracing my grandmother's lineage? she was full blooded blackfoot and her name waas irene. she married my great grandfather whose name was nathaniel graves. my grandfather was a run away slave who joined the union army. later they settled in jeffersonville indiana and the story stops there. can anyone tell me where to look?
thank you

[Tom]

Hey Jr, start with census records and then local history and town directories using those three items can keep you buisy, Tom