Tinker, Mapper, Soldier, Spy – Captain Henry Elsdale’s Pioneering 1882–83 Experiment with Small Balloons and Vertical Aerial Photography in Halifax, Canada

AbstractThe first aerial photography trials in Canada took place at Halifax, Nova Scotia, in 1882 and 1883. They are attributed to an Englishman, Captain Henry Elsdale (1842–1900) of the Royal Engi...