Masonry Expert To Explain graphic
“Fort Ontario Details of Detached Scarp and Flank Casemates. June 10, 1863” – Between 1863 and 1871, plans to improve and modify Fort Ontario changed three times. Masonry expert John Weaver II will present a tour and lecture on American masonry forts that were built to guard the Canadian border Aug. 28 at Fort Ontario. Graphic provided by the National Archives.
