A relative purchased property in Dawson County, Nebraska, in the 1880s. He died in the 1890s in Pike County, Illinois, still owning the property. He wrote a will that was probated in Illinois. In the mid-1940s, there was some legal action over the Nebraska property to clean up some title issues that were not apparently settled adequately when the relative died. Fifty years after he lived in Nebraska and fifty years after he died in Illinois, there was a land record in Nebraska that mentioned him, his estate, and his will in Illinois.
Title issues to real estate are not always cleaned up immediately after a person dies. Usually they are, but occasionally a title searcher finds something that needs to be dealt with. And if that detail is discovered after the parties involved are dead, the records tend to be more detailed.