Bureau of Navigation -... en.wikipedia.org

Bureau of Navigation |... military-history.fandom.com...

Office of Intelligence and... en.wikipedia.org

Bureau of Navigation |... military-history.fandom.com...

United States Department of... en.wikipedia.org

United States Hydrographic... en.wikipedia.org

Bureau of Navigation |... military-history.fandom.com...

Nautical Almanac Office |... bookstore.gpo.gov

Department of the Interior www.fiscal.treasury.gov

U.S. Department of the... theorg.com

History of the Treasury |... home.treasury.gov

THE BUREAU OF NAVIGATION,... meridian.allenpress.com

History of the Treasury |... home.treasury.gov

treasurey-babel-the-interce... theintercept.com

United States Department of... en.wikipedia.org

U.S. Department of the... www.linkedin.com

U.S. Department of the... www.naco.org

Nautical Almanac Office |... bookstore.gpo.gov

File:Treasury Department... commons.wikimedia.org

A century of U.S. naval... ia601004.us.archive.org