Dallas Airmotive senior manager of marketing Bill Barber, 61, retired last month after a decade with the engine maintenance company. Barber, who joined Dallas Airmotive in 1992, developed major marketing programs for the company, and managed Web site development and trade-show appearances. He also led the corporate data-research team, and was instrumental in the smooth integration of the company into the BBA family when that UK group acquired Dallas Airmotive in 1997.