Trost & Trost Architects & Engineers, often known as Trost & Trost, was an architectural firm based in El Paso, Texas. The firm's chief designer was Henry Charles Trost, who was born in Toledo, Ohio, in 1860. Trost moved from Chicago to Tucson, Arizona in 1899 and to El Paso in 1903. He partnered with Robert Rust to form Trost & Rust. Rust died in 1905 and later that year Trost formed the firm of Trost & Trost with his twin brother Gustavus Adolphus Trost, also an architect, who had joined the firm as a structural engineer. Between 1903 and Henry Trost's death on September 19, 1933, the firm designed hundreds of buildings in the El Paso area and in other Southwestern cities, including Albuquerque, Phoenix, Tucson, and San Angelo.

Prairie School is a late 19th and early 20th-century architectural style, most common in the Midwestern United States. The style is usually marked by horizontal lines, flat or hipped roofs with broad overhanging eaves, windows grouped in horizontal bands, integration with the landscape, solid construction, craftsmanship, and discipline in the use of ornament. Horizontal lines were thought to evoke and relate to the wide, flat, treeless expanses of America's native prairie landscape.