Rob Hall Antiques has dated this Georgian Oil Portrait Painting to the 18th Century.

The Royal College of Physicians records him as “a good Greek scholar, and well read in his profession,” and describes him as a man of humanity and generosity—qualities reflected in how he was remembered at the end of his life

THE ALDERMANBURY DINNER: A FIRST-HAND ACCOUNT

His autobiography preserves a first-hand account of an evening at Dickson’s house in Aldermanbury in 1758.
Aldermanbury was a street in the City of London, the historic and commercial centre of the capital, situated close to St Paul’s Cathedral. In the 18th century it was a well-established and respectable residential area, placing Dickson firmly within the professional heart of London life.

Carlyle recalls that, following his sister’s marriage, “Dr Dickson and she gave a dinner to my friends with two or three of his,” and he proceeds to name those present. The company included William Pitcairn, John Armstrong, Tobias Smollett, Dr Orme, William Robertson, John Blair, and John Home, together with Carlyle himself.

Smollett was among the most important novelists of the 18th century, his works—including Roderick Random (1748) and Peregrine Pickle (1751)—offering vivid and often satirical portrayals of contemporary society.

Home’s tragedy Douglas (1756) achieved immediate success and notoriety, becoming one of the defining dramatic works of the Scottish Enlightenment.
WILLIAM MILLAR AND DICKSON’S IMMEDIATE CIRCLE
A particularly significant connection to the work of William Millar lies within Dickson’s own documented social circle.
Among the guests recorded by Carlyle at the Aldermanbury dinner of 1758 was John Home, author of Douglas. Home is known to have been painted by William Millar in a portrait dated to around 1762, now in the collection of the National Galleries of Scotland.
Within this circle, portraiture was an established expression of status and identity. Figures of comparable standing sat for the leading painters of the age: John Home was painted by Allan Ramsay, William Robertson by Sir Henry Raeburn, and William Pitcairn by Sir Joshua Reynolds. Alexander Carlyle was painted by Sir Henry Raeburn.
The painting has been relined and displays surface variations consistent with age and restoration. It presents well, with good retention of detail in the face and costume and a strong overall appearance.
Oil on canvas, presented in a later gilt wood frame in good condition.
To the reverse is a 19th-century paper label naming the sitter as Thomas Dickson M.D. and noting the picture as the property of Mr Dickson.
SUMMARY
A compelling and highly presentable mid-18th century portrait of a clearly identified sitter whose life and associations place him firmly within the intellectual and professional elite of his time.
Measuring: Frame 85 cm x 73 cm ( 33.5" x 29"). Canvas - 73 × 61 cm (29 × 24 in)
Scottish school, c 1760
Rob Hall Antiques has dated this Georgian Oil Portrait Painting to the 18th Century.
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