Possible Clues:

• J.R. Ewing, for one
• Certain pro football player
• LBJ was one
• Michael Dell, for one
• Houston NFL player
• American cut back in case of tension
• Old TV western starring Rory Calhoun, with 'The'
• Briefly communicate with a national leader like LBJ
• Either President Bush, e.g.
• Houston pro since 2002