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 6:
Many of his followers smoked, sometimes apparently to such an extent as to cause scandal among their brethren. The following is an entry in the minutes of the Friends' Monthly Meeting at Hardshaw, Lancashire: "14th of 4th mo. 1691. It being considered that the too frequent use of smoking Tobacco is inconsistent with friends holy profession, it is desired that such as have occasion to make use thereof take it privately, neither too publicly in their own houses, nor by the highways, streets, or in alehouses or elsewhere, tending to the abetting the common excess." Another Lancashire Monthly Meeting, Penketh, under date "18th 8th mo. 1691" suggested that Friends were "not to smoke during their labour or occupation, but to leave their work and take it privately"—a suggestion which clearly proceeded from non-smokers. The smug propriety of these recommendations to enjoy a smoke in private is delightful.