# Dr. John Collins Warren

- By: Francis Alexander (3 Feb 1800 - 27 Mar 1880)
- Date: c. 1845-50
- Medium: Pastel on paper
- Classification: Drawings
- Dimensions: Image: 25 × 18.5 cm (9 13/16 × 7 5/16")
- Credit line: National Portrait Gallery, Smithsonian Institution
- Museum: [Smithsonian Institution](https://npg.si.edu/object/npg_NPG.69.41)
- Rights: [CC0 (Smithsonian Open Access)](https://creativecommons.org/publicdomain/zero/1.0/)
- Picture: https://invisiblenetwork.ai/thumbs/web/1028e7f2ca3cece3062c50ee53c90526.jpg
- Who can see it: Adult profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)