Candid photograph of an unidentified student at press in a machine shop.

Candid photograph of an unidentified student and teacher in a machine shop.

Candid photograph of a student in an apron, teaching a gift-wrapping class.

Candid photograph of a student in an apron, teaching a gift-wrapping class.

Candid photograph of two students at press in a machine shop.

Portrait of Shuger at approximately 60 years old.

Portrait of Schmidt at approximately 25 years old.

Portrait of Lancaster at approximately 40 years old.

Portrait of Muller at approximately 40 years old.