Photograph of David Lewis posing with two individuals at Great Lakes Carbon company. The subjects are identified as Greta (left), David Lewis (center), and Mrs. Wilson (right). They pose inside of a lab with cinder block walls.

Photograph of Geraldine Watson preparing a plant for mounting in the Lamar University Herbarium. She looks down at a table with scissors and a brush, holding the stem of a plant. She stands in a room with several workspaces and a dark-colored cabinet in the background.

Photograph of farmers gathering harvested hay in a farming equipment wagon being towed by a blueish-gray tractor. Unharvested golden brown hay waits for farmers to harvest the remainder of the field. Single-story buildings partially obscured by trees line the background of the photograph. Deep green trees cast their shadow on the hay field to the left of the tractor. A paved asphalt road with painted white lines runs across the bottom of the photograph.