- steigrad.com gordon-portrait-of-thomas-allen-with…< > SIR JOHN WATSON GORDON (Edinburgh 1788 – Edinburgh 1864). Portrait of Thomas Allen with his Mineral Specimens. oil on canvas.
- en.wikipedia.org File:Thomas Allan (1777–1833) painted by JW Gordon.jpgSummary. John Watson Gordon: Portrait of Thomas Allen with his Mineral Specimens wikidata:Q124850761 reasonator:Q124850761.
- wikidata.org wiki/Q124850761https://commons.wikimedia.org/wiki/File:Thomas_Allan_(1777–1833)_painted_by_JW_Gordon.jpg. creator. John Watson Gordon.
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