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Sources
1. Supp HD Project, HD of Puget Sound, 1945, CDSG.
2. Supp HD Project, HD of Columbia River, 1946, CDSG.
3. Supp HD Project, HD of San Francisco, 1945, CDSG.
4. Supp HD Project, HD of Los Angeles, 1944, CDSG.
5. Supp HD Project, HD of San Diego, 1945, CDSG.
6. Radar Station B-71 HAER No. CA-332 Appendix A
7. California Military Museum
11. US Army Owned, Sponsored and Leased Facilities Report, AMD-1, Office of the Chief of Engineers, 31 Dec 1945, CDSG Pdf.
12. Mikesh, Robert C., Japan's World War II Balloon Bomb Attacks on North America, Smithsonian Institution Press (GPO), Washington, 1973, page 32, 34-35
13. Deur, Douglas, Empires of the Turning Tide: A History of Lewis and Clark National Historical Park and the Columbia-Pacific Region, Pacific West Region: Social Science Series, Publication Number 2016-001, National Park Service, U.S. Department of the Interior, ISBN 978-0-692-42174-1
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