Streetcar lines grew and prospered in Dallas from 1872 until the 1920s. Automobile competition siphoned many of their riders away, but ridership soared again during World War II. After the war, the trolleys entered an era of gradual attrition, and they were abandoned by 1956. Amazingly, in 1989, the nonprofit McKinney Avenue Transit Authority (MATA) returned restored vintage trolley cars to the city in the Uptown neighborhood near downtown. MATA evolved...