As part of the American Dream unit, teachers at my school had students write about family history. I saw a problem after my first year, however, since some students either didn't know family history. It seemed unfair to tell them that their American experiences were not as important as their classmates, so I added four more options to the assignment.
This download gives you all five options. It was used in an English setting, but it might even be a better paper in social studies. Maybe world languages as a way to compare immigrants over time. It's cheap because if I would use it today, I'd have templates and links to all the right websites instead of just five ideas for research papers students enjoy writing.