[14] Pennsylvania Ledger, May 6, 1775. [William Smith in Philadelphia was selling drugs in 1772 (Potts Papers, vol. 1, folio 52).]
[15] Pennsylvania Evening Post, December 26, 1775.
[16] Pennsylvania Packet, September 11, 1775; Pennsylvania Journal, September 6, 1775; Pennsylvania Gazette, October 4, 1775.
[17] The Marshalls sold drugs to Sharp Delaney and William Smith in April 1776 (Marshall Waste Book, see footnote 20).
[18] E. T. Ellis, "The Story of a Very Old Philadelphia Drug Store," American Journal of Pharmacy, 1908, vol. 75, p. 57; England, op. cit. (footnote 3), pp. 348-350; Parke, Davis & Co., A History of Pharmacy in Pictures, undated booklet edited by George Bender.
[19] Ford, op. cit. (footnote 10), vol. 3, p. 442; vol. 4, pp. 188, 197.
[20] Christopher Jr. and Charles Marshall Waste Book, February 21 to July 6, 1776, at The Historical Society of Pennsylvania, Philadelphia.
[21] Ford, op. cit. (footnote 10), vol. 3, p. 442; vol. 4, pp. 188, 197; Burnett, op. cit. (footnote 11), vol. 1.
[22] Owen, op. cit. (footnote 2), pp. 18-19.
[23] American Archives ... Peter Force, ed., Washington, ser. 4, vol. 1-6, 1837-46; ser. 5, vol. 1-3, 1848-53. Ser. 4, vol. 3, p. 306.