I don’t know who passed away, but they were important to this family. Note the lack of scenery; this graveyard is probably at the bottom of glacial Lake Agassiz, now a nearly-flat, low plain along the border of North Dakota and Minnesota. For centuries this area was grasslands, save some hardwood trees along the creeks and rivers. Farmers arrived in the 19th century, but erosion wasn’t a big concern until the Dust Bowl. The land was smooth and featureless; even today, you can still see where the curve of the horizon disappears, if you look in the right direction.