Construction Work on the North Dakota Governor's Residence Accidentally Unearthed Seven Coffins Dating Back to the State's Early Settlement
The cemetery site was established in 1872, when the state capital Bismarck was a small frontier community called Edwinton. Most, but not all, of its gravesites were exhumed five years later to make way for a railroad
We haven't written up this one. Smithsonian has the full story — the link below goes straight to it.