My Great-Grandpa homesteaded near here and later had a mercantile store in the old prairie town that this cemetery serviced. The store burned down when the pool hall beside it caught on fire. My Great-grandfather moved away and I didn't recognize any other relatives on the markers. Looking at the names, they appear to be mostly English, some Scottish and Irish, a few Norwegians, some Germans, and one Chinese.
The angelic container should fit in with the other markers in the area. It is green and may be hard to spot.