Deadoses Indians. A small Texan tribe which in the 18th century lived with other tribes on San Xavier river, probably the San Miguel, which joins Little river and flows into the Brazos about 150 miles from the gulf. In 1767-68 they were said to reside between Navasota and Trinity rivers, and in 1771 were mentioned with the Tonkawa, Comanche, Towash (Wichita), and others as northern Texas tribes in contradistinction to the Cocos (Coaque), Karankawa, and others of the coast region. If the Mayeyes were really related to the Tonkawa, as has been asserted, the fact that this tribe is mentioned with them may indicate that the language of the Deadoses resembled that of the Tonkawa. They may have been swept away by the epidemic that raged among the Indians of Texas in 1777-78.