Candid photograph of Goldsborough at approximately 28 years old.

Candid photograph of Gilman at approximately 75 years old reading in a rocking chair on his porch in Maine.

Candid photograph of Gilman at approximately 75 years old reading in a porch chair.

Candid photograph of Dawson at approximately 33 years old in a laboratory.

Candid photograph of Cullen at approximately 36 years old in an operating room.

Candid photograph of Cole at approximately 31 years old sitting at his desk.

Candid photograph of Bunting at approximately 31 years old at a microscope.

Candid photograph of Baetjer at approximately 30 years old sitting on the railing.

Candid photograph of Young at approximately 34 years old at his desk.

Candid photograph of Wilson at approximately 50 years old in his office with his library.