The 13 ancestral Caddo sites and collections discussed in this article were recorded by G. E. Arnold of The University of Texas at Austin between January and April 1940 as part of a WPA-funded archaeological survey of East Texas. The sites are located along the lower reaches of Patroon, Palo Gaucho, and Housen bayous in Sabine County, Texas. These bayous are eastward-flowing tributaries to the Sabine River in the Toledo Bend Reservoir area, but only 41SB30 is located below the current Toledo Bend Reservoir flood pool. This is an area where the temporal, spatial, and social character of the Caddo archaeological record is not well known, despite the archaeological investigations of Caddo sites at Toledo Bend Reservoir in the 1960s-early 1970s, and in more recent years
