From Chapter 2:
In the afternoon the gallant might attend what Dekker calls a "Tobacco-ordinary," by which may possibly have been meant a smoking-club, or, more probably, the gathering after dinner at one of the many ordinaries in the neighbourhood of St. Paul's Cathedral of "tobacconists," as smokers were then called, to discuss the merits of their respective pipes, and of the various kinds of tobacco—"whether your Cane or your Pudding be sweetest."

Of course he often bragged, like Julio in Day's "Law Trickes": "Tobacco? the best in Europe, 't cost me ten Crownes an ounce, by this vapour."

From Chapter 7:
Fielding himself smoked his pipe. When his play "The Wedding Day" was produced by Garrick in 1743, various suggestions were made to the author as to the excision of certain passages, and the modification of one of the scenes. Garrick pressed for certain omissions, but—"No, damn them," said Fielding, "if the scene is not a good one, let them find that out"; and then, according to Murphy, he retired to the green-room, where, during the progress of the play, he smoked his pipe and drank champagne. Presently he heard the sound of hissing, and when Garrick came in and explained that the audience had hissed the scene he had wished to have modified, all Fielding said was: "Oh, damn them, they have found it out, have they!"

Simon Fraser, Lord Lovat, the crafty old Jacobite who took part in the rising of 1745 and who was executed on Tower Hill in 1747, was a smoker. The pipe which he was reported to have smoked on the evening before his execution, together with his snuff-box and a canvas tobacco-bag, were for many years in the possession of the Society of Cogers, the famous debating society of Fleet Street.