Black and white photograph of the active Jewel Geyser in front of a forest at Yellowstone National Park.

Black and white photograph of a cottage built into the side of a hill in the woods. "Jewell Blue Cottage - Portage Lake" is written on the bottom of the image.

Black and white photograph of the gravestone of Joanna Sprague which reads, "Here lyes y Body of Mrs. Joanna Sprague Wife to Mr. Samuel Sprague Who Died June 17th 1739 Aged 43 Years & 3 Months."

Black and white lantern slide copy of an ancestry chart of John Merrill (1772-1818).

Black and white photograph of the gravestone of John Upham (range 3 row 11) which reads, "Here Lyes y Body of John Upham Aged 84 Years Died Feb 25 1681."

Black and white photograph of two men standing over mastodon bones in an excavation site at Jonio Farm. Another man is visible working in the background.

Black and white photograph of an excavation site at the Jonio Farm. Numbered markers are scattered among the excavated areas. A dog is visible sitting and a man can be seen working on the right side of the image.

Black and white photograph of four men working on the mammoth skeleton excavation site at Jonio Farm. At the left, a man leans over a mammoth pelvis bone in plaster.

Black and white photograph of a map of the Excavation at Jonio Farm.

Black and white photograph of the statistic sheets from the mastodon excavation project at Jonio Farm.

Black and white photograph of three people, one man and two women, standing in front of a monument to Benito Juárez in Juárez, Mexico.

Black and white photograph of a dam built on the edge of a lake. "Junction Dam. Is written on the bottom of the image. The dam is know known as the "Tippy Dam."

Black and white lantern slide (dark) of an aerial view of Juneau, Alaska.

Black and white photograph of Jupiter Terrace, Yellowstone National Park. Taken by Robert Merrill from above. Water damage is visible on the image, which was scanned from the negative.

Black and white photograph of Jupiter Terrace at Yellowstone National Park. Taken by Robert Merrill from below.

Black and white photograph of Kansas City train station. Taken by Robert Merrill from the east.

Black and white photograph of Kansas City train station. Taken by Robert Merrill from the south.

Black and white photograph of four men and a tractor next to a creek. A field is visible behind a pile of dirt.

Black and white photograph of four men and a tractor working on an archaeological excavation site.

Black and white photograph of three children standing in front of a wood and wire fence. One child is holding a stick.

Black and white photograph of a boy, Kenneth [Hewitt, Jr.?], standing on the steps of a building.

Black and white photograph of a man standing on Lake Worth beach.

Black and white photograph of Kepler Cascades, Yellowstone National Park.

Black and white lantern slide of two of the Kerzerho standing stones in alighment.