Image of the hotel construction site for the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio.

Photograph of James Martin riding a horse named Blondie and moving a herd of cattle through a grove of mesquite trees. The branches of a mesquite tree in the foreground partially obscure the scene.

Photograph of Lady Bird Johnson looking towards the partially off camera Jacqueline Onassis Kennedy. They are standing in a room that contains a doorway with floral curtains, an unadorned wall with a doorway, and a partially visible mirror and lamp. A person leans over behind Johnson and touches a bag.

Photograph of the Lower Valley School bus. The bus is parked in front of the school building.

Photograph of Lyndon Johnson and John F. Kennedy standing and reading letters amid a room full of people.

Photograph of Lyndon Johnson and John F. Kennedy standing in a room and surrounded by photographers.

Photograph of Lyndon Johnson and John F. Kennedy standing in a room and surrounded by photographers.

Image of the legend of the bat dock, minirail station, parking, major and minor pedestrian circulations at the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio.

Photograph showing three masons constructing a structure with brick for HemisFair '68. The masons are wearing cowboy style hats and long sleeve shirts.

Photograph of Mr. and Mrs. Otto Lindig standing outside of a building with a group of people who are singing and holding open books.

Photograph of Otto Lindig shaking hands with a man wearing a suit. Lindig's wife and a several rows of young people stand behind them. The entire group is standing outside in front of a white building.

Photograph of Richard Ballard and another cowboy sitting at the head and foot of a twin bed playing checkers on an oversized board inside the Matthews Ranch bunkhouse. There is another twin bed next to them. A fireplace on the far wall of the room is positioned between two windows. There are several wooden rocking chairs in front of the fireplace.

Aerial photograph of Matthews Ranch (Lambshead) headquarters from the south. Buildings and surrounding roads are in the foreground. In the background is ranch land separated into pastures by barbed wire fences.

Aerial photograph of Matthews Ranch (Lambshead) headquarters from the south. The ranch buildings are in the center of the photograph. In this view the roads surrounding them are clearly visible. There are mesquite trees in the foreground and open ranch land in the background.

Photograph of ranch hands spraying cattle in a pen at the Matthews Ranch (Lambshead), located north of Albany, Texas. Adjacent to the pen is an additional pen filled with cattle. Behind the pens two ranch hands ride horses in a field where a car stands parked beside a gate. Mesquite trees dot a sloping hill on the horizon.

Image of the Convention Center construction site for the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio.

Photograph of Watt Matthews sitting and writing at a desk inside the Matthews Ranch cookshack. To his left on the desk is a pancake on a tin plate. Next to the plate, a cowboy hat rests on top of a radio. Behind Matthews, a ranch hand stands holding a coffee cup. John White, the ranch cook, stands turned away at the stove wearing an apron. To his left is the back of Carrol Martin.

Photograph of Watt Matthews sitting and writing at a desk inside the Matthews Ranch cookshack. To his right are two telephones, one red and one black. A cowboy hat rests on top of a radio to his left. In the background, a ranch hand in a cowboy hat leans against the kitchen counter holding a coffee cup. John White (the ranch cook), another ranch hand (possibly Richard Ballard), and Carrol Martin are also standing in the kitchen behind Matthews.

Photograph of Watt Matthews and friends gathered around a round table at the Reynolds Bend cookshack at Lambshead Ranch celebrating Watt's birthday. Matthews is leaning over the table and blowing out the candles on a two-tiered birthday cake that is sitting on a large Lazy Susan in the middle of the table. Other people are seating around the table (Joe B. Matthews is in the foreground, viewed from behind). The table is positioned in front of two curtained windows. To the right, four women and a girl are standing and smiling.

Photograph taken in a field at the Matthews Ranch located north of Albany, Texas. Watt Matthews stands in front of a telephone pole holding the receiver to his ear. Weaver Bush and an unidentified cowboy with a bandanna over his face are sitting on horses behind Matthews. A "Bronco" truck is parked on the left in the foreground. In the background, cowboys and a horse are standing behind a horse trailer attached to a truck.