Has anyone written a fictionalized version an episode in their family history?

I have a great story about my ancestors. They were killed in the Sioux uprising of 1862 in Minnesota. Some call it The Dakota War and now there's a film of the same name. That's on my mother's side. On my father's side, I may have a tiny bit of Sioux blood in me. I've always thought there's a great story in there. I'm not sure I can pull it off, but that's a different question.

There are only a couple of accounts of what happened to my ancestors. They all came from a neighboring family that was with them near the end, but were split up. The only other evidence was the finding of their bodies. There's a monument to them in the town of Hutchinson, MN.

I'm just curious if anyone has tried this and how they dealt with familial reactions, etc. Like I said, I'm not sure I could pull this story off without changing all the names and adding more fiction than fact.