Portrait image credits
Retrieved: 22 October 2026

These portraits illustrate historical political thought. They do not represent
measured personal profiles, endorsements, or a user's actual match.
No source website's questionnaire, result vectors, or proprietary artwork is included.

1. mill.jpg — John Stuart Mill, circa 1870
Creator: London Stereoscopic Company
Source collection: Hulton Archive
Source and public-domain statement:
https://commons.wikimedia.org/wiki/File:John_Stuart_Mill_by_London_Stereoscopic_Company,_c1870.jpg
Downloaded Wikimedia-generated 500-pixel JPEG:
https://thumb.wikimedia.org/wikipedia/commons/thumb/9/99/John_Stuart_Mill_by_London_Stereoscopic_Company%2C_c1870.jpg/500px-John_Stuart_Mill_by_London_Stereoscopic_Company%2C_c1870.jpg
License/status: Public Domain Mark 1.0; Commons identifies the work as public domain
under the author's-life-plus-70-years rule. The photograph dates to circa 1870.
https://creativecommons.org/publicdomain/mark/1.0/

2. wollstonecraft.jpg — Portrait of Mary Wollstonecraft, circa 1790–1791
Artist: John Opie (1761–1807)
Source collection: Tate Britain
Source and public-domain statement:
https://commons.wikimedia.org/wiki/File:MaryWollstonecraft.jpg
Downloaded Wikimedia-generated 500-pixel JPEG:
https://thumb.wikimedia.org/wikipedia/commons/thumb/b/bc/MaryWollstonecraft.jpg/500px-MaryWollstonecraft.jpg
License/status: Public Domain Mark 1.0; Commons identifies this as a faithful
reproduction of a public-domain two-dimensional painting. The artist died in 1807;
the painting predates 1931 and is out of copyright under life-plus-100-years terms.
https://creativecommons.org/publicdomain/mark/1.0/

3. smith.jpg — The Muir portrait, traditionally identified as Adam Smith, circa 1800
Artist: Unknown
Source collection: Scottish National Gallery / National Galleries of Scotland, PG 1472
Source and public-domain statement:
https://commons.wikimedia.org/wiki/File:Adam_Smith_The_Muir_portrait.jpg
https://www.nationalgalleries.org/art-and-artists/3787/adam-smith-1723-1790-political-economist
Downloaded Wikimedia-generated 500-pixel JPEG:
https://thumb.wikimedia.org/wikipedia/commons/thumb/4/43/Adam_Smith_The_Muir_portrait.jpg/500px-Adam_Smith_The_Muir_portrait.jpg
License/status: Public Domain Mark 1.0; Commons identifies this as a faithful
reproduction of a public-domain two-dimensional painting, out of copyright under
life-plus-100-years terms and published before 1931. The identification of the sitter
is traditionally accepted but not definitively proven; it is known as the Muir portrait.
https://creativecommons.org/publicdomain/mark/1.0/