From the Niagara Falls Review:
Sunday, Jan. 22, 1899, was a day of high drama on the Niagara River. Several days before, a large ice bridge had formed just below the falls and many people, as was the habit at the time, spent Sunday afternoon walking on it.
Two such individuals were Charles Misner of Buffalo and his friend, Bessie Hall from Johnsonburg, Pa. Starting from the American side, they worked their way across the jagged ice to a point about 185 metres from the U.S. Maid of the Mist landing. There, they found a huge ice boulder and sat on it for nearly half an hour, enjoying the scene.
Misner, in an article he later wrote for a magazine, recalled, “I felt perfectly safe, but Miss Hall remarked she could hear a singing noise under her feet. I assured her it was only her fancy.”