1. Irwin Mark Jacobs portrait #3 Collection: Images from the Rare Book and Manuscript Collections Date: n.d. Format: Image Agent: Unknown
2. Irwin Mark Jacobs portrait #2 Collection: Images from the Rare Book and Manuscript Collections Date: n.d. Format: Image Agent: Unknown
3. Irwin Mark Jacobs portrait #4 Collection: Images from the Rare Book and Manuscript Collections Date: n.d. Format: Image Agent: Unknown
5. [Rendering of a potential building for the Hydraulic Laboratory] Collection: Images from the Rare Book and Manuscript Collections Location: Cornell University, Ithaca, New York Format: Image
9. Herbert H. Johnson (standing) Collection: Images from the Rare Book and Manuscript Collections Format: Image
10. Robert Balluffi (at right) Collection: Images from the Rare Book and Manuscript Collections Format: Image
