Image of the Amusement Park section at the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio.

Image of the Amusement Park section at the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio.

Image of the Amusement Park section at the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio.

Image of the Amusement Park section at the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio.

Image of the Amusement Park section at the 1968 World's Fair (HemisFair '68) held from April to October 1968 in San Antonio.

Photograph of the battle of Flowers Parade in San Antonio, Texas in 1936. The Alamo can be seen in the background of the photo with eight uniformed men standing in front of it. On the left, a pair of bleachers filled with people face a lineup of soldiers in uniform preparing to march.

Photograph of a jazz quintet performing on a stage in front of a small group of people who are seated at three small tables. The name of the quintet is "Alamo City Jazz Band". Most of the people visible in the foreground are drinking beer, and a woman is taking a photograph of the people that are sitting at one of the tables. Chuck Reilley, a local dentist and the bandleader plays trombone and James Carroll Bell is on trumpet, while Randle Tankersley plays the bass saxophone.

Photograph of a woman and a man riding in a small motorized boat in the three-acre lake at Fiesta Island, at HemisFair '68. The man is wearing clown-like face paint, and is holding a sign announcing the next water ski show at 12 o'clock. The free show was sponsored by Mercury Outboard.

Image of the Arena at the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio, Texas.

Photograph of a boy crouched behind a dark-colored pig, posing in a grassy field or yard. A tree and parked car are partially visible in the background.

Photograph of Fleet Admiral Chester W. Nimitz and Catherine Freeman Nimitz at a Fiesta in San Antonio. Admiral Nimitz stands at his wife's side in a dark Navy uniform with six buttons on its front, ribbon bars above his pocket, stripes and a star on each sleeve and black dress shoes. He is leaning over Mrs. Nimitz who sits to his right in a light embroidered shirt, dark embroidered skirt and patterned scarf tied around her head. Handwritten on front: "Fiesta San Antonio 1948 To Catherine and Junior with love from Dad and Mother".

Photograph of Fleet Admiral Chester W. Nimitz and Catherine Freeman Nimitz at a Fiesta in San Antonio. Admiral Nimitz stands at his wife's side in a dark Navy uniform with six buttons on its front, ribbon bars above his pocket, stripes and a star on each sleeve and black dress shoes. He is leaning over Mrs. Nimitz who sits to his right in a light embroidered shirt, dark embroidered skirt and patterned scarf tied around her head.

Photograph of school children and several accompanying adults posing inside one of the office buildings at HemisFair '68 for a group picture.

Photograph of people standing and sitting in an open area outside of the Coca Cola pavilion at HemisFair '68. Two carriages from the Swiss Skyride are passing directly over the area.

Image of the Coke Pavilion Kaleidoscope by Sid-Marty Krofft at the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio, Texas.

Aerial view of the courtyard at the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio, Texas.

Photograph of a group of men and women in traditional dress dancing in front of a painted mural that is part of the Panama pavilion at HemisFair '68. The women are wearing folklorico dresses and the men are wearing traditional trousers, shirts, and hats. The dancers are accompanied by a group of musicians in the background at left.

Photograph taken inside a crowded dining pavilion at HemisFair '68. Most of the people are seated, others are walking by. A food concession stand selling jumbo hot dogs is at the right-hand side.

Image of the Ferris wheel and Fair at the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio, Texas.

Image of the Fiesta Island Fair grounds at the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio, Texas.

Image of Fiesta Island food and games at the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio, Texas.

Image of Fiesta Island rides at the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio, Texas.

Image of Fiesta Island rides at the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio, Texas.

Image of the Food Court at the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio, Texas.