Candid photograph of McElroy at approximately 42 years old with bottles of fireflies.

Portrait of Boas at approximately 73 years old in his office.

Candid photograph of Johnson at approximately 50 years old, lecturing to a class.

Candid photograph of Johnson at approximately 50 years old, lecturing to a class.

Candid photograph of Freeman at approximately 45 years old in her office with art objects.

Candid photograph of Katcher at approximately 35 years old, talking to Torreson, who is approximately 50 years old.

Candid photograph of Spitzer at approximately 65 years old looking at manuscripts.

Candid photograph of Hausrath at approximately 80 years old lecturing to a class.

Candid photograph of Freeman at approximately 45 years old in her office with art objects.

Candid photograph of Spitzer at approximately 65 years old laughing in his study.