Dear Gillian-- The Clay County Historical Museum has cemetery books for all the cemeteries in the county. The Greenwood Cemetery survey is on a computer database at the museum, too, but unfortunately is not online. The next time I make a run up into Clay County (I live in Oklahoma City, Oklahoma) I will, if I have time, record the Broughton Cemetery (and put it on the site), and if I don't, I will copy down the names you are looking for from the cemetery books. By the way, I just tonight put the 1918 plat maps for all the townships on the site. No name indexes yet, but you might want to browse through them. Thanks, Sheryl