Texes along the Rio Grande 
Late in 1851 Graham was recalled tc Washington and Wright was transfered 
(in Nov.) from the corp of naturalists to the Engineers and put to work 
surveying the Rio Grande. In his letter to Gray dated Jan.25,52, he says, 
"Since he left (Graham, early in Dec.51) 1 have surveyed the Rio Grande from 
San Ignacio thirty miles below this placet San Eleazario) to the canyon where 
the” 1 fan "Antonio road first strikes the river" 
San Ignacio is on the Mexican side of the river about 7 miles below the 
Mexican town of Guadalupe and about 5 or 6 miles up river from the point where 
the ElPaso-Hudspeth county-line hits the Rio Grande 
San Elizario ia in El Paso County near the Rio Grande ca. 20 m. S of ElPaso 
The canyon leading to San Antonio from the Rio Grande is in the Quitman 
Mts.^ »g«|^old Fort Quitman and is in Hudspeth County 
concerning Graham's period of attachment to the Boundary Survey 
see Bartlett, Narfcfct. 2 : 545 
