As far I can tell, Charles Goodnight is the only writer to use the name “Dirt Dauber” to refer to birds in the swallow family (Hirundinidae). Everyone else reserves that name for various species of wasp. From his The Making of a Scout, some frontier navigation wisdom:
‘The scout had to be familiar with the birds of the region,’ continued the plainsman, ‘to know those that watered each day, like the dove, and those that lived long without watering, like the Mexican quail. On the Plains, of an evening, he could take the course of the doves as they went off into the breaks to water. But the easiest of all birds to judge from was that known on the Plains as the dirt-dauber or swallow. He flew low, and if his mouth was empty he was going to water. He went straight too. If his mouth had mud in it, he was coming straight from water.’ (pp. 42-43)
Goodnight is cited in S. C. Gwynne, Empire of the Summer Moon, p. 198. David Sibley writes that American swallows of the genera Hirundo and Petrochelidon use mud to build nests. All are permanent Texas residents, at least by today’s distribution maps.