From Chapter 4:
But to turn from this worthy Exeter citizen to more famous names: I do not know of any good evidence as to whether or not Cromwell smoked, although he is said to have taken an occasional pipe while considering the offer of the crown, but John Milton certainly did. The account of how the blind poet passed his days, after his retirement from public office, was first told by his contemporary Richardson, and has since been repeated by all his biographers. His placid day ended early. The poet took his frugal supper at eight o'clock, and at nine, having smoked a pipe and drunk a glass of water, he went to bed. Apparently this modest allowance of a daily evening pipe was the extent of Milton's indulgence in tobacco. He knew nothing of what most smokers regard as the best pipe of the day—the after-breakfast pipe.

From Chapter 5:
Clouds were blown under archiepiscopal roofs. At Lambeth Palace one Sunday in February 1672 John Eachard, the author of the famous book or tract on "The Contempt of the Clergy," 1670, which Macaulay turned to such account, dined with Archbishop Sheldon. He sat at the lower end of the table between the archbishop's two chaplains; and when dinner was finished, Sheldon, we are told, retired to his withdrawing-room, while Eachard went with the chaplains and another convive to their lodgings "to drink and smoak."