You might be able to find the newspaper story at the Hillsboro Library, also. They have a genealogy section and have some newspapers on microfilm. 1923 would be on it, I had been looking for info from 1870-1885 or so, but they didn't have them on film from that far back.
I was able to find a story from 1910, though, about a relative who was struck and killed by a train in Covington.
I also have relatives buried in Covington, but I think my gggrandparents must be in an unmarked grave.
I haven't been able to find anybody with a master list of all the graves, marked and unmarked. But most of the marked graves are listed online.