In the early 1950s the airport was served by the original Frontier Airlines (1950-1986) which flew DC-3's on a route from El Paso to Phoenix that included stops at Las Cruces, Deming, and Lordsburg, NM as well as Clifton, Safford, and Tucson, AZ.
A protected group is a group of people qualified for special protection by a law, policy, or similar authority. In the United States, the term is frequently used in connection with employees and employment.
group. n. 1. An assemblage of persons or objects gathered or located together; an aggregation: a group of dinner guests; a group of buildings near the road. 2. number of individuals or things considered or classed together because of similarities: a small group of supporters across the country. 4. Linguistics A category of related languages that is less inclusive than a family.