There currently are no petite modeling agencies in the Dallas area. If you are at least 5'5" or an exceptional 5'4" you can look into Dallas modeling agencies that have a commercial/print division.
Elite Models NY 404 Park Avenue South, 9th Floor New York New York 10016 Wilhelmina 7257 Beverly Boulevard Los Angeles, CA 90036 Q Management New York City 354 Broadway NEW YORK, NY 10013, USA
West Virginia is not a huge modeling market so there are barely any type of agencies in this area. The only ones listed include: Mountain State Talent Agency, LLC - Barboursville, West Virginia...
Petite modeling agencies are few and far in between because there is no demand for them but you can try a shot at commercial/print modeling agencies: - Angie's Model & Talent Agency