Contains photographs of William Andrews Clark, Jr. from approximately 1878 to 1934. Some images are formal studio portraits, while others are casual snapshots. Many casual photographs contain unidentified individuals.

Photographs and other images of WAC Sr., dating from approximately 1903 to 1930.

Photographs and materials related to other members of the Clark family. Most of the material consists of photographs of William Andrews Clark III and Alice McManus Clark, but there are also items related to WAC Jr.'s siblings, his first wife Mabel Foster Clark and his grandmother, Mary Andrews Clark.

Contains photographs and other materials related to William Andrews Clark, Jr.'s colleagues and friends, including Clark Library staff members, musicians, booksellers and other public figures. In particular, this subseries contains significant original materials related to Cora Sanders as well as print materials about artist Allyn Cox. A number of signed photographs of musicians and literary figures are also included here.

Photographs, drawings and other materials related to WAC, Jr.'s acquaintances and friends from Montana, and in the music, literary and art worlds.

Photographs, drawings and other materials related to WAC, Jr.'s acquaintances and friends from Montana, and in the music, literary and art worlds.

Photographs, drawings and other materials related to WAC, Jr.'s acquaintances and friends from Montana, and in the music, literary and art worlds.

Photographs, drawings and other materials related to WAC, Jr.'s acquaintances and friends from Montana, and in the music, literary and art worlds.

Photographs, drawings and other materials related to WAC, Jr.'s acquaintances and friends from Montana, and in the music, literary and art worlds.

Photographs, drawings and other materials related to WAC, Jr.'s acquaintances and friends from Montana, and in the music, literary and art worlds.