Black and white photograph of a baby, Ann Weston (granddaughter of Merrill's wife Audie), sleeping on a blanket.

Black and white photograph of a group of people standing on the edge of a mountain. Another mountain can be seen in the distance. Stone walls are standing between the photographer and the crowd of people.

Black and white photograph of Toronto Exposition in Toronto, Ontario. Crowds of people are scattered across a park, and a large building in visible in the background. A banner to the right of the building reads health-happiness-children.

Black and white photograph of harbor front in Toronto, Ontario.

Black and white photograph of piers at Toronto, Ontario.

Black and white photograph of a forest hillside overlooking Ingonish, Nova Scotia.

Black and white photograph of several buildings and a farm on a hillside with mountains in the distance. Three people, one man and two women, are visible standing on the hillside between the farm and the photographer looking towards the camera.

Black and white photograph of a town in the distance with fields divided by stone fences in the foreground. Mountains are visible in the background. Three people can be seen standing in one of the fields.

Black and white photograph, taken by Robert Merrill, looking southwest toward Cripple Creek, Colorado.

Black and white photograph, taken by Robert Merrill, looking southeast toward lakes. Likely taken near Pikes Peak, Colorado.

Black and white photograph of the Tower Falls in Yellowstone National Park (mile 17523).

Black and white photograph of a tower on Pikes Peak. Several people can be seen standing next to railroad tracks in the foreground.

Black and white photograph of town on Orleans Island (Île d'Orléans) in Québec. Water damage is visible on the image, which was scanned from the negative.

Black and white photograph of a train on a railway lined with palm trees. The roofs of station buildings are visible behind the train cars, and the train is next to a river.

Black and white lantern slide of three Chinese men operating surveying instruments.

Black and white photograph looking northwest along Abbot's Brook in Trenton, New Jersey, near Argillite site.

Black and white photograph of a large tree behind a wood and wire fence. A dirt road is next to the fence with forest in the background. "A Trinidad Saman Tree." is written on the bottom of the image.

Black and white lantern slide of an aerial view of Tulum, Mexico.

Black and white photograph of the Tuolumne River, Yosemite National Park.

Black and white lantern slide of the Twin Lakes, Yellowstone National Park. Taken from the summit towards the northeast entrance.

Black and white photograph of two bears by the Fountain Hotel, Yellowstone National Park.

Black and white lantern slide of an excavation cut with two partially excavated clay lamps.

Black and white lantern slide of the Yellowstone Lower Falls taken from the Uncle Tom Trail.

Black and white photograph of railway tracks going up a mountainside. A bridge over the tracks is visible.