Portrait of Baumgarten at approximately 22 years old.

Portrait of Basset at approximately 28 years old with his signature.

Engraved portrait of Mergenthaler at approximately 40 years old.

Portrait of Warner at approximately 30 years old.

Portrait of Smith at approximately 31 years old.

Portrait of James at approximately 27 years old.

Portrait of Herriot at approximately 27 years old.

Portrait of Hazen at approximately 25 years old.

Portrait of Norton at approximately 65 years old.

Portrait of Merriam at approximately 26 years old.