Photo credit: Stockport Heritage Services
I attach a PDF making a case for changing the description of the sitter from Samuel Oldknow (1756–1828) to Aaron Eccles (1787–1856).
This sitter has brown eyes- the other Aaron ,35, has blue eyes. The ears are very different. Aaron ,35, has a more bulbous end to his nose. Not too sure they are the same person.
I agree the Stockport portrait does not look like the Wright portrait of Oldknow, but it is hardly definite that it is a portrait of Eccles based on the known portrait of him, even if it is not impossible.
It would be desirable to get the opinion of a period fashion expert as to date, but this may wind up no better than "Portrait of a Man" by British School.
Here is portrait of George Hudson about 1850-- Same style coat and waistcoat and same style sideburns-- so I would suggest a similar date for this painting.
Oh, I definitely think it's first half of the 19th century; the question is whether it's pre-Victorian or early Victorian.
Apart from the painfully poor condition, it's a reasonably good portrait, and would no doubt look considerably better with suitable conservation. Ideally, there would be some national centre for that to which public collections without their own means to restore paintings could send such works.
I agree that this cannot be Samuel Oldknow, though I think these two later images of him - https://bit.ly/2v2QmWF and https://bit.ly/3776q83 - are even more persuasive evidence of that: he would clearly have had grey/white hair by the time of this portrait. The full lips and nose shape (straight with slightly upturned end), both consistent in all three, are also quite different in ours.
But I am not convinced by the "remarkable similarity" to Eccles suggested. Louis has mentioned three significant differences, to which I would add that Aaron's lower lip is much fuller. See attached comparison. His blue eye colour is the most telling, as even a bad portraitist will get that right. You might say that the low resolution in our portrait's image makes the true colour unclear - but even with brightness and colour saturation bumped up there is no hint of blueness there. And would a provincial solicitor have had two different oil portraits painted within, at most, ten years? It's possible, but pretty unlikely.
In any case, even with a far better facial match it would be unwise to say it must be Eccles. We often caution here on the 'looks like' approach to portrait identification - facial appearance alone can rule people out (as I think it does Oldknow), but is seldom works the other way round. Many people's faces look similar, particularly to eyes centuries later, and artists see different things - this is not like comparing photographs. Unless there is some very pronounced and rare physical feature, or some other identifying attribute in the portrait - perhaps an inscribed letter or a view of a known house - it is essential to have provenance or at the very least a traditional identification to work with. Here, apparently, we have nothing.
The two faces (ours and that of Eccles) have different "personalities." Eccles looks something like a comic actor, while ours is rather stolid, not to say dull, certainly less vivacious. They are not the same person.