Despite the general lack of detailed reports on individual sites, the broad framework of the prehistory of eastern Oklahoma has been fairly well outlined in recent years. Orr (1946) presented a summary of the situation at the Spiro site. In the same year Krieger (1946) set up two aspects with a number of component foci which include the Spiro materials together with a majority of the other cultural manifestations in the area and in 1949 he amplified and partially revised sections of his earlier discussion (Newell and Krieger, 1949). Baerreis (1951) presents a significant body of data on preceramic horizons in the northeastern part of the state, and the recent paper by Bell and Baerreis (1951) summarizes most of the existing information on Oklahoma in general.