July 25, 2023: revised Mount Vernon Arsenal, Peirce's Mill Fort, Mims' Fort.
February 25, 2023: added Lighthouse Point Battery, Oyster River Point Battery (2), Bridgeport Batteries. Revised Long Point Fort.
DISTRICT OF COLUMBIA
August 6, 2023: moved Nicolls' Outpost (2) from SOUTHERN GEORGIA page.
August 10, 2023: added Joel Doolittle's Fort, John Leeper's Fort, Hannum's Fort, Boyle's Fort, Strawn's Fort, Griffith's Fort, Jesse Roberts' Fort, Beckwith's Fort, James Dever's Fort, Bureau Grove Fort, Mackinaw Timber Fort, Little Vermilion Blockhouse, Fort Holcomb, Wright's Fort, Buffin's Fort, Martin's Blockhouse, Peter Butler's Fort, Findley's Blockhouse, John Pence's Fort, Fort at Yellow Banks, Orr's Blockhouse, Hezekan Spillman's Fort, Camp Morton, Camp Doggett, Camp Fuller, Camp Hancock. Revised Fort Do-Little, Camp Douglas (1), Sisson's Fort.
July 25, 2023: added Ford's Fort, James' Fort.
July 31, 2023: added Paw-Paw Fort, Camp Herron (2), Fort at Big River Bridge, Bloomfield Fort, Camp Spring Hill, Post at Glover, Post at Centerville, Camp Totten (2), Marshfield Fort, Camp Bliss, Camp Schofield, Camp Coffee, Sedalia Fort.
August 20, 2023: added Wolf Point Post, Hammell's Post (5), Brown's Trade Post, Roberts' Trade Post, Tom Campbell's Post, Fort Aiken, Price's Post (1), Pickett's Corral, Price's Post (2), Camp Otis, Power's Post, Hammell's Post (4), Hammell's Post (3), Camp Canby, Fort Whitney, Terry's Landing Depot, Fort Gallatin, McLeod Trade Post, Eagle's Nest.
February 15, 2023: added New York Barracks, City Hall Park Barracks.
March 7, 2023: revised Fort Wadsworth.
June 25, 2023: added Fort on Bald Head. Revised Fort Holmes (2).
NORTHERN MARIANA ISLANDS
PANAMA CANAL ZONE
January 31, 2023: added Philadelphia Barracks, Lancaster Barracks, Camp Terrill, Camp Muhlenberg.
January 1, 2023: complete revision of all three pages, with numerous additions and corrections from Revolutionary War Defenses in Rhode Island, by John K. Robertson, 2022.
U.S. VIRGIN ISLANDS
August 8, 2023: added Blue River Fort. Corrected location for Funk's Fort.
August 20, 2023: added Medicine Bow Depot, Rock River Depot.
July 22, 2023: added Fort Similkameen, Osoyoos Post, Vernon Post, Grand Prairie Post, Fort Dallas, Fort Berens, Little Fort, Perry Creek Post, Fort Stager, Kitwanga Post, Manson Creek Post, Bella Coola Post. Revised Fort Langley, Kootenay Post (2), Kootenae House (1), Fort Chilcotin, Quesnel Post, Barkerville Post, Fort Victoria, Fort Simpson, Fort Nelson, Black River Post, Dease Lake House, Telegraph Creek Post, Glenora Post.
PRINCE EDWARD ISLAND
ST. PIERRE and MIQUELON
CANADIAN SHIPS and SHIPYARDS