"Piedmont Airlines, April 1, 1950 : direct service between the Ohio River Valley and the Tidewater cities of North Carolina and Virginia."; "Piedmont Airlines."; "Piedmont Airlines."; "Airlines--United States--Timetables."; "Piedmont Airlines."; "1950"; "

Brochure.

"; ""; "P15360"; "pec"; "Airlines--United States--Timetables.", "Piedmont Airlines."; "14256"; .