Alonzo Glasgow, South Carolina Cemetery, Lamar County Alabama
I have found Loyd's in Monroe County, Mississippi. In Alabama I have located them in cemeteries in Lamar County, Marion County, Pickens County, and Fayette County. I found one in Fulton County, Georgia on the grave of a man "murdered by a crowd of bad men for no reason".
The pottery marker were made up of a pointed rectangle top that fit in a tube like base. I have not found a lot of intact tops and bases. If the top is intact it is usually stuck in the ground or laying flat in the ground. It is not unusual to find them broken into pieces and stack on the or near the grave.
Alabama and Mississippi Loyds at Flickr
Awesome Informative Pieces of Work About Loyd Pottery Grave Markers:
Loyd-style stoneware or pottery grave markers - Terry Thornton, 2010
William Payne Loyd, Itawamba Potter - Mona Mills, 2009
Itawamba County's Unique Pottery Monuments - Franks, 2017
The History of Alabama's Rare Ceramic Headstones and Their Cobalt Blue Glaze - Kasek, 2017