Image of a woman identified as "Longstaff sister" taking a photo of the Three Sisters from a train car at Canmore - another train of passenger cars in background - caption along bottom reads "The Three Sisters - (one of them!)" along the bottom in ink
Image of a woman identified as "Longstaff sister" taking a photo of the Three Sisters from a train car at Canmore - another train of passenger cars in background - caption along bottom reads "The Three Sisters - (one of them!)" along the bottom in ink