U.S. Air Service, Vol. 5, No. 2, March 1921, page 13-16; Air Mail Pilots Cross Country in 33 Hours 20 Minutes Flat
U.S. Air Service, Vol. 6, No. 1, August 1921, page 31: Remodeled DH's for Air Mail
U.S. Air Service, Vol. 7, No. 1, November 1922, page 24: Night Flying From Coast to Coast in 28 Hours By Colonel Paul Henderson
U.S. Air Service, Vol. 8, No. 5, May 1923, page 13: Post Office Department Asks Bids for Air Mail, New Orleans LA-Pilottown LA
U.S. Air Service, Vol. 8, No.5, May 1923, page 32: Air Mail Service Schedule, New York to San Francisco
U.S. Air Service, Vol. 8, No.5, May 1923, page 56: Air Mail Developing Aces (transcontinental route)
U.S. Air Service, Vol. 8, No. 9, September 1923, page 9-17: Night Air Mail Service From oast to Coast (has photos)
U.S. Air Service, Vol. 8, No. 9, September 1923, page 5: (advertisment) Photo of U.S. Air Mail Field, Cheyenne WY.
U.S. Air Service, Vol. 8, No. 9, September 1923, page 30-32: Night Flying Progress by M.L. Patterson
U.S. Air Service, Vol. 9, No. 12, December 1924, page 25-28: Chicago-New York Night Air Mail Planned
Overnight Air Mail Service between New York and Chicago, to start early next spring, was announced, recently, by Carl F. Egge, General Superintendent of the Post Office Departmen's Air Mail Division, who has just completed his report to Col. Paul Henderson, Second Assistant Postmaster General, embracing plans for illuminating the 780-mile route and working out emergency landing fields.
U.S. Air Service, Vol. 10, No. 2, February 1925, page 4: (advertisement) U.S. Air Mail Plane at Emergency Landin Field
U.S. Air Service, Vol. 10, No. 4, April 1925, page 13-16: Birds of the Night (page 15, shows "Views along the Route of Our Great Air Mail")
U.S. Air Service, Vol. 10, No. 4, April 1925, page 20: The Curtiss "Carrier Pigen" to Operate Between New York and Chicago
U.S. Air Service, Vol. 10, No. 4, April 1925, page 48: Overnight Airmail New York and Chicago announced by Postmater General New on March 5
U.S. Air Service, Vol. 10, No. 5, May 1925, page 48: New Air Mail Contracts
U.S. Air Service, Vol. 10, No. 6, June 1925, page 7: (advertisement) Only A Night's Flight
U.S. Air Service, Vol. 9, No.2, February 1925, page 34-38: The Gay White Way of the Air Mail
An Interview With Colonel Paul Henderson, in Charge of Air Mail by C. Moran. (has some great photos)
U.S. Air Service, Vol. 10, No. 6, June 1925, page 20: New Air Mail Line to Start July 1
U.S. Air Service, Vol. 9, No.6, July 1924, page 7-15: The First Night Airways, Lieut. D. L. Bruner and Liewt. H.R. Harris A.S.
U.S. Air Service, Vol. 10, No. 7, July 1925, page 10-16: Make Way for the New York-Chicago Night Air Mail
Never Before Has Night Flying Been Attempted as a Scheduled Undertaking Over Mountainous Regions
U.S. Air Service, Vol. X, No.7, July 1925, page 59: (Advertisment) GE Searchlights Guide the Night Air Mail (nice beacon photo)
U.S. Air Service, Vol. X, No.9, September 1925, page 31: Photo of a B.B.T. dioptric 500 million Candle Power Flood Light
U.S. Air Service, Vol. X, No. 11, November 1925, page35: Five Air Mail Routes Awarded to Private Corporations
Boston to New York Via Hartford: The successful bidder is Colonial Air Lines, Inc., Naugatuck, Conn.
Chicago to St. Louis via Springfield: The successful bidder is Robertson Aircraft Corporation, St. Louis, Mo.
Chicago to Dallas and Ft. Worth: The successful bidder is National Air Transport, Inc., of Chicago, Ill.
Chicago to Birmingham: No award.
Chicago to Saint Paul and Minneapolis: No award.
Salt Lake City to Los Angeles: The successful bidder is Western Air Express, Inc., of Los Angeles.
Elko to Pasco: The successful bidder is Walter T. Varney of San Francisco, Calif.
Seattle, Washington, to Los Angeles: The bid of Vern C. Corst (Gorst) is now under consideration.
U.S. Air Service, Vol. 12, No. 8, December 1925, page 39-45: Tales of the Air Mail Pilots, by Burt M. McConnell
Stories along the transcontinental airway. Pilots mentioned are: Claire K. Vance (photo), Slim Lewis, Wesley Smith, Robert H. Ellis (photo), Boonstra, Chandler, Huking, Blanchfield, Lester F. Bishop (photo),
Annual report of the Secretary of Commerce November 7, 1927, page 29
Program of Lighting:
Routes lighted by June 30, 1927
Los Angeles-Salt Lake (partial)
Pueblo-Cheyenne (under contract)
Dallas-Chicago (under contract)
Routes to be lighted by June 30, 1928:
Los Angeles-Seattle (partial)
Chicago-Twin Cities (partial)
Salt Lake-Pasco (partial)
San Francisco-Salt Lake
Los Angeles-Salt Lake (to complete)
Routes to be considered for fiscal year 1929:
Los Angeles-Seattle (to complete)
Chicago-Twin Cities (to complete)
Atlanta-St. Louis via Birmingham and Memphis
St. Paul_Winnipeg (to United States border)
Albany-Montreal (to United States border)
Jacksonville-Savannah-Charleston-Norfolk (seaplane airway)
Birmingham-Louisville via Nashville
Annual report of the Secretary of Commerce November 7, 1927, page 30