Downtown McAllen
McAllen's Old Post Office Anchors a Downtown Heritage Corner
McAllen's old post office gives downtown a clear civic landmark. The Texas Historical Commission says the building at South Main Street and Chicago Avenue was built in 1935 and dedicated on January 22, 1936.
The marker says it served as the city's post office until 1957, after which the building was used for a variety of purposes, including federal and city office space. Its style is worth a look: Spanish Colonial Revival, with a baroque frontispiece around the front door, a corbelled cornice, and a red tile roof.
The marker now stands at the McAllen Heritage Center on that same corner. For anyone walking downtown McAllen, it is a fixed point that ties the modern city back to its early-20th-century beginnings.
Source to confirm: Texas Historical Commission Atlas - McAllen Post Office