American Seacoast Defenses a Reference Guide, 3rd Edition

The third edition of American Seacoast Defenses, a Reference Guide (ASD3) is now available as BOTH hard cover print edition and an electronic PDF document. The third edition features updated and enhanced photographs throughout the book, with an extensive revision of the uniforms and insignia sections. The electronic version makes it great for searching […]


Documents Specific to each Harbor Defense Part 1

A collection of historical information on the harbor defense structures: batteries, fire control, mine support, searchlights, etc., built at the various harbor locations.

PDF listing of all Harbor Defense Document files

Reports of Completed Works (RCWs)

Reports of completed batteries (RCBs) and reports of completed works (RCWs) were forms […]


Documents Specific to Each Harbor Defense Part 2

The CDSG Harbor Defense Documents listing continued …

Harbor Defense Project Plans: Annexes & Supplements

In the National Archives Record Group 407, Records of the Adjutant Generals Office, 1917-, Entry 366, are filed the various Harbor Defense Projects of the 1930s & 1940s. A Harbor Defense Project was a written document which described all existing and […]


Summary of Documents Arranged by Harbor Defense

PRICING: We provide this as a service to our members and interested researchers. We are charging $50 for the larger and/or combined harbor defenses, $10 for the smaller Harbor Defenses. Delivery by download or USB drives by post are available.

SPECIAL OFFER: We are offering the entire Harbor […]


The CDSG Documents Collection

You can get the entire collection or request specific titles: Please contact Mark Berhow ( for details

A PDF file listing all the files available in the CDSG documents DVD can be downloaded here.

Annual Reports of the Chief of Engineers (ARCE) 1866-1922: Extracts related […]


PDF documents available from other sources:

HISTORY OF THE 700 AND 800 SERIES CANTONMENT CONSTRUCTION CD ROM: WW 2 and the U.S. ARMY MOBILIZATION PROGRAM: A History of the 700 and 800 Series Cantonment Construction including Historic American Building Survey documentation for Camp Edwards,MA and Fort McCoy, Wisconsin. 552 pages, 82 illustrations, 152 pages of building drawings. This is […]


Other PDF files available:

U.S. Army Military History Institute (

Several Army documents have been scanned and placed on line as downloadable PDF files.For example: Survey of Japanese Seacoast Artillery, 1946 by GHQ USAFPAC, Seacoast Artillery Board 160pp.  This report by a board of coast artillery officers at the end of the war focuses primarily on the […]