John Blackwood FRSE (1818–1879) was a Scottish publisher, sixth son of William Blackwood. John succeeded his father as editor of the business in 1834, on William's death. Four years later he was joined by Major William Blackwood, who continued in the firm until his death in 1861. Five of William Blackwood's seven sons played a role in the running of the company, William Blackwood and Sons.
He was born in Edinburgh on 7 December 1818.
Educated at the High School and University of Edinburgh, he early displayed literary tastes, which procured for him the nickname of 'the little editor.'
At the close of his college career he spent three years in continental travel. Soon after his return, his father having meanwhile died and been succeeded by two of his elder brothers, he entered, in 1839, to learn business, the house of a then eminent London publishing firm.
In 1840, he was entrusted with the superintendence of the branch which his brother's Edinburgh house was establishing in London. He occupied this position for six years, during which his office in Pall Mall became a literary rendezvous, among his visitors being Lockhart of the 'Quarterly Review,' Delane of the 'Times,' and Thackeray, with the last two of whom he formed an intimate friendship.
One of his functions was to procure recruits for 'Blackwood's Magazine,' then edited by his eldest brother, and to him was due the connection formed with it by the first Lord Lytton, who began in 1842 to contribute to it his translation of the poems and ballads of Schiller. In 1845, he returned to Edinburgh on the death of his eldest brother, whom he succeeded in the editorship of 'Blackwood's Magazine.' In 1852, by the death of another elder brother, he became virtual head of the publishing business also, and he retained both positions until his death. As an editor he was critical and suggestive, as well as appreciative. As a publisher he preferred quality to the production of quantity ; in both capacities he displayed hereditary acumen and liberality.
He quickly discerned the genius of George Eliot, forthwith accepting and publishing in his magazine the first instalment of her earliest fiction the 'Scenes of Clerical Life,' which had been sent to him without the name of the author, for whom thus early he predicted a great career as a novelist. This commencement of a business connection was soon followed by a personal acquaintance between author and publisher, which ripened into intimacy. In her husband's biography of George Eliot there are many indications of her readiness to accept Blackwood's friendly criticisms and suggestions, and of her grateful regard for him.