The pottery from this site was described and classified in 1941 (Webb and Dodd 1941), on the basis of the sherds found in the four levels of Mound B (Houses 1 to 4), the floors of the adjoining Houses 5 and 6, and the fills between these levels, in addition to whole vessels from the associated Burials 1 through 19 and several of the house floors. This was the first attempt to set up pottery types from an excavated Caddoan site and was necessarily tentative. The classification has been subjected to continuing study and modification on the basis of reports from subsequent excavations and surface surveys in the four-state area.

Much of this reclassification has resulted from correspondence and conversations with Alex Krieger as he developed the Texas materials, from the two Caddoan Conferences held at Norman, Oklahoma, in 1946 and 1952, and from several informal conferences with Krieger, Howard, Stephenson, Cotter, Haag, Baerreis, and others interested in the area. James B. Griffin and James A. Ford gave valuable assistance in the original formulation of Belcher types in 1941 and critical suggestions since that time.