Name and year of birth (1762) and death from:
https://en.wikipedia.org/wiki/Arthur_Devis_(1712–1787)

Notice from a 13-pager document compiled by, and received from, Julie Bourke (nee McColl) on 27 April 2017. Julie is the great-great-granddaughter of Emma Frances Devis b. 1814
Public Advertiser Saturday 12 December 1778
…Three Silver Medals were given for the beft Drawings of Academy Figures to Meffrs A.W. Devis, James Cook and John Hoppner.

From 13-pager ex Julie Bourke (including spelling of text where an S is written F):
Gazetter & New Daily Advertiser Thursday 7 May 1767
Mr DEVIS, Great Queen Street, No. 90, A Lady whole length, the face flat, and ill coloured, but the drapery and frill life very fine – No 91, A Gentleman on a horseback. It would have done the Artift more honour to have kept the Gentleman on horseback at home. Nos,92 and 93. Two fweet girls, delightfully painted.

From 13-pager ex Julie Bourke:
True Briton Wed 24 February 1796
THE ARTS
The picture of THE SURRENDER OF THE CHILDREN OF TIPPOU SAID to LORD CORNWALLIS which was mentioned in our last account of the ARTS, is likely to raise the ingenious Painter at once into celebrity. DEVIS who is the painter, has, it is said entered into an engagement with Sharp, the engraver, to make a plate from it at the enormous price of FOUR THOUSAND POUNDS – We say enormous, not with any view of intimidating that SHARP will be overpaid, as he is an excellent engraver, and will, of course, employ a considerable portion of time and labour upon the work, but because it appears hardly possible that there should be any profit on the publication after such a vast deduction, with all the incidental expenses.

From 13-pager ex Julie Bourke (including spelling of text where an S is written F):
Public Advertiser Thursday 14 Sept 1769
On Monday morning laft died at his houfe in Maiden Lane, Convent Garden, Mr Collivqe, an eminent Picture Cleaner, and Dealer in Pictures – The Bufinefs will be carried on by his partner and succeffor Mr Devis, Painter, in Great Queen Street, Lincoln Inn Fields, who has had the Chief Management of that Bufinefs for fame time paft.


From 13-pager ex Julie Bourke:
Lloyds Evening Post Monday 2 June 1800
A.W. Devis Bankrupt – Hanover Square, George Street, painter, June 13,14 and July 15 at one at Guildhall Attorneys Meffrs Dunn & Dunn, Threadneedle Street.
[Julie writes: Other notices in other newspapers of his bankruptcy, A.W. Devis was in and out of Debtors prison most of his adult life].

From 13-pager ex Julie Bourke:
Morning Chronicle Monday 23 June 1800 and also similar advert Oracle & Daily Advertiser Saturday 28 June 1800
SALE BY AUCTION
Lease, Furniture, and Effects, George-street, Hanover Square
By Mr sharp
By direction the Assignees, on the Premises, No 27, George-street, Hanover-square, on TUESDAY the 8th July, and following DAY, at Twelve o’clock ALL the fashionable HOUSEHOLD FURNITURE and other valuable effects, of Mr Arthur William Devis comprising two dining room suits in French curtains, sofas, elbow chairs with cushions, undress chairs, beautiful satin-wood, Pier, Card, and Pembroke Tables; large Pier Glasses, Cirandoles, Lustres, fine Brussels Carpets, Large lofty beds, of fine chintz, lined and fringed with excellent bedding; Mahogany items of the best manufacture; a capital 8 day clock, by Evans; a Vestal of Coade’s Artificial stone, highly bronzed; some beautiful Proof Prints; fine calico sheets; Indian Dimity and fine Damask Table Linen; small elegant sideboard of Plate, scarce and valuable, Books, in various languages and Sciences, some curious Indian Reliques, &c In the first Day’s sale, at Two o’clock precisely, will be sold the lease of the premises, of which about 17 years are unexpired in due time, by Mr Sharp, No 32, Winchester Street, near the Royal Exchange.

From 13-pager ex Julie Bourke:
Jacksons Oxford Journal Saturday 2 March 1822
DIED
In Caroline-street, Bedford Square, Arthur William Devis Esq., an artist of the first talent.

Full date of death and Obituary from 13-pager ex Julie Bourke:
The Examiner Sunday 3 March 1822
OBITUARY
THE LATE MR DEVIS
On Monday the 11th ult. [last month] at his home, Caroline-street, Bedford Square, in the 60th year of his age, died Arthur William Devis, Esq., and on Wednesday the 19th, his remains were deposited in the front Church-yard of St, Giles-in-the-fields; on which occasion many of his brother Artists, who respected both the man and his talents, attended his funeral, to pay the last tribute of respect to departed worth. Among those present were Messrs. Soane, Mulready, Cooper, and Bailey, Royal Academicians; - Messrs, Arnold and Clint, Associates:- Mr C. Warren the engraver, Messrs. Pickersgill, Wilde, &c. Mr. Devis, at an early period of his life, was distinguished as an Historical and Portrait painter of considerable talent. On some flattering prospects held out to him, he was induced to go to India, where he practised his Art with success for several years, at the tine Lord Cornwallis was Governor General; from whence he proceeded on a voyage of Discovery round the World with Captain Wilson, who discovered the Pellew Islands, where the ship was lost. He remained nine months amongst the inhabitants, and brought home a number of interesting drawings of them, showing their habits and customs. On his return to England he painted the large picture of Tippoo Saib’s Son, delivered as hostages to Lord Cornwallis (of which transaction he was an eye witness) with portraits of the principal persons present; this picture, with those of the Death of Nelson, and the Barons swearing to support Magna Charta, place him in a high rank in this elevated department of Art. The grace, beauty, and delicacy with which he designed abd painted his portraits (particularly his females and children) render his works in this line equally worth of admiration. – In fact, Mr Devis, both as an historical and Portrait painter, was an ornament to the British School, and the death of such an Artist is to be considered as a national loss.
(Our Correspondent has not noticed an infirmity in the subject of his article, that struck many of his friends as not a little curious;- which was, the frequent complaints Mr Devis used to utter respecting his exclusion from the honours of the Royal Academy! It absolutely preyed on his mind! That he was used extremely ill by that body, cannot for a moment be doubted; for his powers as an Artist were infinitely superior to those of the great majority of royal Academicians; and the wretched cant which was put forth as a reason for his exclusion, only served to increase the disgust of every liberal and impartial person. One should have thought, however, that this very treatment would have cured any man of spirit of a wish to belong to such a crocodile body. – Exr.)

From 13-pager ex Julie Bourke:
The Morning chronicle Monday 10 June 1822
SALES BY AUCTION
Effects of the late Arthur William Devis, Esq., - By Mr Stanley on the Premises, No. 12, Caroline-street, Bedford-square TOMORROW and following Day, at twelve, by order of the Administratrix.
THE PAINTINGS, HOUSEHOLD FURNITURE, PRINTS, BOOKS, PLASTER CASKS. PAINTERS IMPLEMENTS, and other EFFECTS of the late A.W. DEVIS, Esq., comprising the much admired whole length portrait of Miss O’Niell in the character of Belvidern, the Apotheosis of the late Princess Charlotte, Portraits of the Marquess of Anglesey, Moreau, and other distinguished characters; numerous Prints & Drawings, a few Books including Ancient and Modern History and a variety of articles interesting to artists. The Household Furniture embraces the usual arrangement of drawing room parlour, bed chamber and kitchen articles, in excellent condition.
To be viewed, when catalogues may be had on the premises; and of Mr Stanley, at his auction Rooms, 21, Old Bond Street.

[Julie Bourke writes, “There were a number of items about Devis painters describing there work, different paintings etc., Academy etc., in many different newspapers, right up to late 1800s, I did not take them all out”].

From 13-pager ex Julie Bourke who found on the Internet:
https://archive.org/stream/miscellaneagenea5190how...nea5190howa_djvu.txt
Miscellanea Genealogica et Heraldica Monumental Inscriptions St Giles in the Fields
“A plain white marble Tablet – In pious Memory of / Her Father & Mother & only Sister / Arthur William DEVIS, Artist, / Margaret DEVIS & Ellin DEVIS / (who died in the years 1822, 1818, 1826 / respectively aged 59, 34 & 17 / This Tablet is here placed / in the Church where they worshipped / by Isabella, wife of Martin F. Tupper / The Family Tomb having recently been removed”.

Year of birth calculated from above would be approximately 1763?