From Model Research Vol. 2:

http://history.nasa.gov/SP-4103/app-h3.htm#38
Appraisal of German Research in Comparison with the NACA 1946

http://history.nasa.gov/SP-4103/app-h2.htm#21
NACA accomplishments c.1928

http://history.nasa.gov/SP-4103/app-h4.htm#46
NACA proposal for expanding into space flight research 1958

http://history.nasa.gov/SP-4103/app-h3.htm#36
National Aeronautical Research Policy 1946

http://history.nasa.gov/SP-4103/app-h2.htm#18
National Aviation Policy 1920

http://history.nasa.gov/SP-4103/app-a.htm#1
Naval Appropriations Bill rider P.L. 63-271 1915

http://history.nasa.gov/SP-4103/app-h3.htm#30
Westover Committee Report 1938

http://history.nasa.gov/SP-4103/app-h2.htm#22

From The Wind and Beyond
On a new type of wind tunnel (variable density) 1921 p.511-21

The NACA full-scale wind tunnel 1933 p.591-601

From Exploring the Unknown Vol. 1:

http://www.hq.nasa.gov/ogc/spaceact.html
The National Aeronautics and Space Act of 1958

http://www.history.nasa.gov/report58.html
Special Committee on Space Technology, Recommendations to the NASA on a National Civilian Space Program 1958

Bugos, Glenn E. Atmosphere of Freedom: Sixty years at the NASA Ames Research Center NASA SP-2000-4314, 2000. Click here to view book online.

Dawson, Virginia P. Engines and Innovation: Lewis Laboratory and American Propulsion Technology. NASA SP-4306, 1991. Click here to view book online.

Hansen, James R. Engineer in Charge: A History of the Langley Aeronautical Laboratory,1917-1958. NASA SP-4305, 1987.  Click here to view book online.

Hartman, Edwin, P. Adventures in Research: A History of Ames Research Center, 1940-1965. NASA SP-4302, 1970. Click here to view book online.

Hunley, J. D., ed. Toward Mach 2: The Douglas D-558 Program. NASA SP-4222, 1999. This book is available online.

Mack, Pamela E., ed. From Engineering Science to Big Science: The NACA and NASA Collier Trophy Research Project Winners. NASA SP-4219,1998. This book is also available online.

Muenger, Elizabeth A. Searching the Horizon: A History of Ames Research Center, 1940-1976. NASA SP-4304, 1985.  Click here to view book online.

Roland, Alex. Model Research: The National Advisory Committee for Aeronautics,1915-1958. NASA SP-4103, 1985. This book is also available online.

Gorn, Michael H. Hugh L. Dryden's Career in Aviation and Space. Monograph in Aerospace History, No. 5, 1996

Jenkins, Dennis R., Tony Landis, and Jay Miller. American X-Vehicles: An Inventory- X-1 to X-50 is Monograph in Aerospace History, No. 31, 2003 (SP-2003-4531). Click here to view monograph

Peebles, Curtis, editor. The Spoken Word: Recollections of Dryden History, The Early Years is Monograph in Aerospace History, No. 30, 2003 (SP-2003-4530). Click here to view the monograph.

Flight Research at Ames, 1940-1997 (SP-3300, 1998).

The High Speed Frontier: Case Histories of Four NACA Programs, 1920-1950. (NASA SP-445, 1980.)

Quest for Performance: The Evolution of Modern Aircraft. (NASA SP-468,1985.) Out of print.

Wind Tunnels of NASA. NASA SP-440, 1981. Out of print.

NACA Chronology

http:history.nasa.gov/timeline.html
Chronology of events at NACA

http://history.nasa.gov/centtimeline/index.html
Timeline with pictures of events at NACA/NASA