Photograph of the Laboratory Dance Band playing their instruments while facing upward toward their left sides. Most of dark suited young men are looking directly at the camera lens. Most are sitting in folding chairs behind desks covered in layers of sheet music. Three pianos can be seen arranged in an "L" shape along the top right corner, curved around the platform that the performers are seated upon. The older Gene Hall Stands off to the upper left of the photo, wearing a greyish suit and glasses.

Photograph of Jack Petersen playing an electric guitar on a stage with other band members behind him. Petersen is wearing a light hued blazer and dark pants. To the left, a man in a slightly darker blazer plays a double bass while standing in front of a backdrop painted with the image of a haloed woman and an angel. Directly behidn Petersen, a seated man in a dark suit is partially obscured. To the right, a man in a greyish suit sits with his back turned to the camera while playing a piano. The rightmost person is wearing a plaid shirt while playing a xylophone. A man's turned head is at the bottom of the photo is obscured by a white note taped onto the photo. The note says, "Jack Petersen."