Portrait of Torgerson at approximately 45 years old.

Candid photograph of Strong at approximately 68 years old at a retirement dinner seated at a table and speaking to his wife. This photograph is from contact sheet #03064.

Candid photograph of Strong at approximately 68 years old at a retirement dinner with the Physics Department faculty. This photograph is from contact sheet #03064.

Candid photograph of Strong at approximately 68 years old at a retirement dinner with the Physics Department faculty. This photograph is from contact sheet #03064.

Candid photograph of Strong at approximately 68 years old at a retirement dinner with the Physics Department faculty. This photograph is from contact sheet #03064.

Contact sheet of 23 portraits of Webb at approximately 35 years old in his office.

Portrait of Webb at approximately 35 years old from contact sheet #03285.

Candid photograph of DeSoto at approximately 45 years old holding a book.

Candid photograph of DeSoto at approximately 45 years old holding a book.

Candid photograph of Ainsworth at approximately 50 years old.