Manuals… maybe I'm the last guy on the planet to find this source… but

if not, check this place out:

http://www.military-info.com/mphoto/p009.htm

WWII Vintage (1939 to 1948)

Army Air Forces. ST-2 Detailed Mock-up Information. Fabric Repair (5 June 1945); 16 pages, 14 illus. Price 2.00{Item No.4461}
FM 1-20 Army Air Force Field Manual. Tactics and Technique of Air Reconnaissance and Observation (20 April 1942); 70 pages, 11 illus. Price 7.00 {Item No.2682}
FM 1-30 Air Corps Field Manual Air Navigation (1940); 43 pages, 12 illus. Price 5.00 {Item No.1221}
FM 20-100 Light Aviation (September 1947); 176 pages, 36 illus. Price 18.00 {Item No.1222}
FM 30-30 Military Intelligence Identification of U.S.Government Aircraft (21 February 1942); 151 pages, 100+illus. Price 15.00 {Item No.3428}
FM 30-35 Military Intelligence Identification of German Aircraft (11 March 1942); 140 pages, 100+illus. Price 16.00 {Item No.4562}
FM 30-38 Military Intelligence Identification of Japanese Aircraft (16 March 1942); 175 pages, 100+illus. Price 19.00 {Item No.4561} [Note that not all of the aircraft listed in the book were published with pictures and that the data on them is fragmentary]
FM 31-35 Air-Ground Operations (August 1946); 76 pages, 4 illus. Price 8.00 {Item No.4053}
TM 1-205 Air Navigation (25 November 1940)(+Change 1); 296 pages, 132 illus. Price 32.00 {Item No.358}
TM 1-208 Air Navigation Tables (1 August 1944); 119 pages, many tables Price 15.00 {Item No.316}
TM 1-208 Air Navigation Tables (5 June 1942); 221 pages, illus. Price 25.00 {Item No.317}
TM 1-230 Weather Manual for Pilots (27 May 1940); 293 pages, 178 illus. Price 30.00 {Item No.2569}
TM 1-231 Elementary Weather for Air Crew Trainees (10 February 1943); 23 pages, illus. Price 3.00 {Item No.2870}
TM 1-231 Elementary Weather for Pilot Trainees (22 April 1942); 25 pages, 5 illus. Price 4.00 {Item No.364}
TM 1-232 Basic Weather for Pilot Trainees (22 April 1942); 204 pages, 135 illus. Price 22.00 {Item No.346}
TM 1-233 Elementary Physics For Pilot Trainees (22 April 1942); 116 pages, 57 illus. Price 12.00 {Item No.2661}
TM 1-233 Elementary Physics for Pilot Trainees (30 December 1943); 142 pages, 63 illus. Price 16.00 {Item No.349}
TM 1-240 Arctic Manual (1 April 1942); 74 pages Price 10.00 {Item No.357}
TM 1-240 Arctic Manual (17 January 1944); 131 pages, 21 illus. Price 15.00 {Item No.348}
TM 1-400 Theory of Flight (24 February 1941); 182 pages, 118 illus. Price 19.00 {Item No.3042}
TM 1-405 Aircraft Engines (January 1945); 83 pages, 86 illus. Price 9.00 {Item No.3485}
TM 1-405 Aircraft Engines (9 December 1941); 81 pages, 54 illus. Price 8.00 {Item No.3734}
TM 1-405 Aircraft Engines (4 November 1940); 81 pages, 54 illus. Price 8.00 {Item No.2664}
TM 1-406 Aircraft Electrical Systems (16 April 1942); 191 pages, 114 illus. Price 20.00 {Item No.2665}
TM 1-406 Aircraft Electrical Systems (February 1945); 147 pages, 286 illus. Price 18.00 {Item No.318}
TM 1-407 Aircraft Induction, Fuel and Oil Systems (22 February 1944); 132 pages, 89 illus. Price 16.00 {Item No.311}
TM 1-407 Aircraft Induction, Fuel, and Oil Systems (23 September 1940); 96 pages, 71 illus. Price 10.00 {Item No.2666}
TM 1-408 Aircraft Engine Operation and Test (24 December 1941); 64 pages, 20 illus. Price 6.00 {Item No.3735}
TM 1-408 Aircraft Engine Operation and Test (16 September 1940); 62 pages, 20 illus. Price 7.00 {Item No.2667}
TM 1-408 Aircraft Power Plant Operation (16 March 1944); 192 pages, 79 illus. Price 22.00 {Item No.360}
TM 1-410 Airplane Structures (30 November 1940); 132 pages, 70 illus. Price 13.00 {Item No.2668}
TM 1-410 Airplane Structures (20 October 1941); 132 pages, 70 illus. Price 13.00 {Item No.3892}
TM 1-411 Airplane Hydraulic Systems and Miscellaneous Equipment (20 October 1941); 106 pages, 58 illus. Price 11.00 {Item No.3486}
TM 1-411 Airplane Hydraulic Systems (8 May 1944); 112 pages, 70 illus. Price 15.00 {Item No.359} [Some illustrations in color we cannot copy]
TM 1-412 Aircraft Propellers (5 January 1944); 249 pages, 117 illus. Price 25.00 {Item No.2669}
TM 1-412 Aircraft Propellers (21 October 1940)(+Change 1); 107 pages, 31 illus. Price 14.00 {Item No.355}
TM 1-413 Aircraft Instruments (2 February 1942); 234 pages, 148 illus. Price 24.00 {Item No.2670}
TM 1-414 Aircraft Woodwork (22 December 1942); 148 pages, 126 illus. Price 15.00 {Item No.3736}
TM 1-415 Airplane Inspection Guide (17 August 1943); 120 pages Price 12.00 {Item No.2778}
TM 1-415 Airplane Inspection Guide (7 March 1942); 104 pages Price 10.00 {Item No.2671}
TM 1-415 Airplane Inspection Guide (24 March 1941); 113 pages Price 12.00 {Item No.2777}
TM 1-416 Miscellaneous Aircraft Equipment (22 March 1944); 84 pages, 51 illus. Price 10.00 {Item No.310}
TM 1-417 Aircraft Fabric Work and Application of Finishes (16 September 1944); 109 pages, 85 illus. Price 11.00 {Item No.4187}
TM 1-424 Aircraft Hardware and Materials (11 June 1942); 80 pages, 44+illus. Price 8.00 {Item No.2672}
TM 1-425 Aircraft Mechanics Tools (26 February 1945); 159 pages, 186 illus. Price 16.00 {Item No.3739}
TM 1-435 Aircraft Sheet Metal Work (10 February 1941)(+Change 1); 147 pages, 98 illus. Price 15.00 {Item No.3740}
TM 1-445 Instrument Flying Training (18 June 1942)(+Change 1); 144 pages, 55 illus. Price 15.00 {Item No.3743}
TM 1-445 Link Trainer Operation and Training (7 September 1940); 122 pages, 64 illus. Price 16.00 {Item No.309}
TM 1-445 Link Trainer Operation and Training (7 September 1940); 122 pages, 64 illus. Price 12.00 {Item No.3742}
TM 1-447 Instrument Trainer Maintenance (2 September 1942); 324 pages, 177 illus. Price 38.00 {Item No.308}
TM 1-460 Radiotelephone Procedure Army Air Forces (31 March 1942); 69 pages, 8 illus. Price 8.00 {Item No.345}
TM 1-460 Radiotelephone Procedure Army Air Forces (24 March 1941); 67 pages, 6 illus. Price 8.00 {Item No.351}
TM 1-460 Army Air Forces Radiotelephone Procedure (20 March 1943); 85 pages, illus. Price 10.00 {Item No.307}
TM 1-470 Aircraft Radio Shop Practice (1 May 1942); 124 pages, 75 illus. Price 12.00 {Item No.2673}
TM 1-495 Aircraft Machine-Gun Sights (26 March 1941); 55 pages, 33 illus. Price 6.00 {Item No.4731}
TM 1-495 Harmonization of Aircraft Fixed Guns and Sights (11 August 1944); 22 pages, 10 illus. Price 5.00 {Item No.306}
TM 1-650 Maintenance Policies, Publications, and Forms (8 June 1942); 117 pages, 33 illus. Price 14.00 {Item No.304}[Army Air Corps Forms]
TM 1-705 Physiological Aspects of Flying and Maintenance of Physical Fitness (25 July 1941); 127 pages, 35 illus. Price 15.00 {Item No.302}
TM 1-705 Physiological Aspects of Flying (25 September 1943); 79 pages, 38 illus. Price 10.00 {Item No.303}
TM 1-750 Applied Physics for Airplane Mechanics (14 September 1943); 79 pages, 46 illus. Price 8.00 {Item No.2674}
TM 1-900 Mathematics for Air Crew Trainees (30 September 1943); 176 pages, 150 illus. Price 20.00 {Item No.301}
TM 1-1050 Fundamentals of Mechcanical Drawing (24 March 1943); 90 pages, 104 illus. Price 10.00 {Item No.299}[Army Air Corps]
TM 8-300 Notes on Eye, Ear, Nose, and Throat in Aviation Medicine (26 November 1940); 286 pages, 49 illus. Price 30.00 {Item No.356}
TM 8-305 Notes on Cardiology in Aviation Medicine (12 November 1940); 204 pages Price 22.00 {Item No.343}
TM 8-310 Notes on Physiology in Aviation Medicine (21 October 1940); 95 pages Price 12.00 {Item No.352}
TM 8-320 Notes on Psychology and Personality Studies in Aviation Medicine (27 January 1941); 335 pages, 2 illus. Price 38.00 {Item No.354}
TM 11-2428 Aerograph Calibration Set TS-407/AMQ-2 (26 October 1945); 23 pages, 9 illus. Price 4.00 {Item No.7534}