Black and white photograph of the Devil's Kitchen cave on Mackinac Island, Michigan. Two men and one woman are visible standing inside the cave.

Black and white photograph of the harbor on Mackinac Island, Michigan, taken by Robert Merrill from a higher elevation.

Black and white photograph of Fort Mackinac on Mackinac Island, Michigan, as seen from the boat Missouri.

Black and white photograph of a group of people standing on the dock at Mackinac Island, Michigan, likely taken from a boat.

Black and white photograph of Mackinac Island, Michigan, likely viewed from a departing boat.

Black and white photograph of Harbor Point, Michigan, likely viewed from a boat.

Black and white photograph of Harbor Springs, Michigan.

Black and white photograph of shoreline at Petoskey, Michigan,

Black and white photograph of shoreline at Petoskey, Michigan,

Black and white photograph of piers at Charlevoix, Michigan,

Black and white photograph of Round Lake in Charlevoix, Michigan. A bridge is visible in the background of the photo.

Black and white photograph of the shoreline around Round Lake in Charlevoix, Michigan.

Black and white photograph of homes and groin structures along the shoreline in Macatawa, Michigan.

Black and white photograph of a group of seven people, three men and four women, sitting on the steps of a porch in Macatawa, Michigan.

Black and white photograph of a group of seven people, three men and two women, in the woods, Macatawa, Michigan.

Black and white photograph of Robert Merrill's sister Ida in an automobile, Holland, Michigan.

Black and white photograph of excavation near Maybees Waste Weir, Erie Canal.

Black and white photograph with closer view of Webb's grader near the Erie Canal.

Black and white photograph of construction of the north end of Culvert 109, New York State Canal System.

Black and white photograph of construction of the south abutment for Watson's Bridge, New York State Canal System.

Black and white photograph of William's Bridge under construction, New York State Canal System. Taken by Robert Merrill from the south.

Black and white photograph of Reynold's house exterior, A person can be seen sitting on the porch.

Black and white photograph of the south abutment for Shelby Bridge under construction, New York State Canal System.

Black and white photograph of a man, possibly Golden, in a canal boat in Middleport, New York. The name on the side of the boat reads Shenandoah.