If a family sold a deceased parent's land after the parent died, not all of the children might have lived near where the property was located. They might have been sent copies of deed, told to acknowledge it in front of a local official, and mail back the information. That acknowledgement would have been recorded with the actual deed.
That's how a deed for my ancestor's White County, Indiana, farm in the 1860s told me the counties in Iowa, Illinois, and Louisiana where his children were living.
Don't neglect to read the acknowledgements on a deed--they may hold clues as to where heirs are living.