Photograph of a body of water. Driftwood is floating downstream.

Photograph of a body of water with minimal flow at 11:25 am.

Photograph of driftwood floating down a river.

Photograph of a body of water surrounded by concrete. Driftwood floats downstream. The water is surrounded by trees.

Photograph of a river surrounded on either side by trees. Near the middle of the image, there appears to be a dam across the river, made of sticks and natural materials. Handwritten text on the back of the photograph says: "California Crossing 11-77,Looking Downstream From Above Dam."

Photograph of a body of water surrounded by trees.

Photograph of driftwood floating down a river.

Photograph of a body of water in which driftwood is floating.

Photograph of a river in which driftwood is floating.

Photograph of a body of water.

Photograph of a river. Driftwood is being pulled downward.

Aerial photograph of a body of water surrounded by trees.

Photograph of Turtle Creek, a river and park in Dallas. A family is walking along the river bank, and multiple groupings of people are scattered across the lawn.

Inventory of investigatory reports and other physical matter related to the assassination of President John F. Kennedy. The inventory is addressed to D. A. Byrd.

Photograph of North Arcadia Park and its surrounding area located in Dallas, Texas. A block of empty land sits in the center of the photograph, and is surrounded by partially tree-covered land to the bottom right and residential suburbs to the top left.

Photograph of Crawford Park and its surrounding area in Dallas, Texas. The park, which contains part of Prairie Creek, sits above and to the right of U.S. Route 175 and a railroad, below Elam Road, and to the left of N Prairie Creek Road. Residential suburbs are visible along the right and top edges of the photograph.

Photograph of Anderson Bonner Park and its surrounding area located in Dallas County, Texas. The park. Roads are shown an all sides of the park, while buildings are visible to the left and right sides of the picture.

Photograph of Arbor Park located in Dallas, Texas. The park is shown in the center of the picture on a section of land partially covered by trees. Power lines are shown along the top and bottom of the photo, and two roads along the bottom and left side of the park intersect at the corner of the picture.

Photograph of Cummings Park and its surrounding area in Dallas, Texas. The park is located near the center of the picture, above Cummings Street and on a subdivision of land containing a school and an apartment complex. Residential suburbs are visible directly below the park.

Photograph of Crestline Park and its surrounding area in Dallas, Texas. The park sits directly above a house and to the left of Crestline Avenue. It is surrounded by residential suburbs, except for a school parking lot, which is visible near the top right corner of the picture.

Photograph of Celestial Park and its surrounding area in Dallas, Texas. The park sits near the center of the photo, below a road, which runs horizontally across the upper portion of the picture. Two small buildings and one larger one are visible near the bottom of the photograph. Dense trees cover the majority of the area.

Photograph of Bachman Lake Park and its surrounding area located in Dallas, Texas. The park is shown around Bachman Lake down the center of the picture. Dallas Love Field sits to the right of the lake, while W Northwest Highway and some smaller buildings are visible to the left side.

Photograph of Bachman Lake Park and its surrounding area located in Dallas, Texas. The park is visible around Bachman Lake, which moves down the center of the photo. Cars drive along both sides of the lake as well as across it on a bridge, and Dallas Love Field sits to the left side. Many small buildings are visible to the right of Bachman Lake.

Photograph of Bayonne Park located in Dallas, Texas. Approximately six blocks of what seems to be residential area is pictured. Many similar buildings occupy these blocks, and a small patch of land with trees sits in the center of the photo.