Association for Gravestone Studies, Linden, Blanche M. G., Kackley, George L., Rotundo, Barbara, Casler, Patricia, Goeschel, Nancy, Duval, Francis Y., Rigby, Ivan B., Shockley, Jay, and Cogswell, Dorothy L.
Association for Gravestone Studies, George, Dianna Hume, Duval, Francis Y., Rigby, Ivan B., Bunyard, Frankie, Stephenson, Robert B., and Cornish, Michael
Association for Gravestone Studies, Mills-Courts, Karen, Behr, Robert, George, Dianna Hume, Welch, Richard F., and Little, M. Ruth (Margaret Ruth), 1946-