Denver (Colo.). Dept. of Public Works.

Stapleton was opened on October 17, 1929 as Denver Municipal Airport, which was later renamed to Stapleton Airfield after expansion in 1944. The facility received a new jet runway and terminal building in 1964. After deregulation, three different airlines operated large hubs out of Stapleton (Frontier Airlines, Continental Airlines, and United Airlines).

From the description of City and County of Denver, Dept. Of Public Works, Stapleton International Airport records , 1929-1999 [manuscript]. (Denver Public Library). WorldCat record id: 263072013