From Chapter 4:
Gardiner evidently follows this account, for his version of the story is: "Newcastle strolled towards his coach to solace himself with a pipe. Before he had time to take a whiff, the battle had begun." The incident was made the subject of a picture by Ernest Crofts, A.R.A., which was exhibited at the Royal Academy in 1888. It shows the Duke leaning out of his carriage window, with his pipe in his hand.

From Chapter 5:
"Old English 'clays,'" says Mr. T.P. Cooper, "are exceedingly interesting, as most of them are branded with the maker's initials. Monograms and designs were stamped or moulded upon the bowls and on the stems, but more generally upon the spur or flat heel of the pipe. Many pipes display on the heels various forms of lines, hatched and milled, which were perhaps the earliest marks of identification adopted by the pipe-makers. In a careful examination of the monograms we are able to identify the makers of certain pipes found in quantities at various places, by reference to the freeman and burgess rolls and parish registers. During the latter half of the seventeenth century English pipes were presented by colonists in America to the Indians; they subsequently became valuable as objects of barter or part purchase value in exchange for land. In 1677 one hundred and twenty pipes and one hundred Jew's harps were given for a strip of country near Timber Creek, in New Jersey. William Penn, the founder of Pennsylvania, purchased a tract of land, and 300 pipes were included in the articles given in the exchange."