5. Pemberton, one of the most prominent Quakers and civic leaders in Philadelphia, has appeared often but peripherally in earlier vols.; see in particular V, 424 n, and also PMHB, LXVII (1943), 282–5. The subject of this letter, the ground rent reserved on property that BF had purchased in 1764, is explained above, XI, 319–21. BF’s negotiation to buy the rent succeeded, but the evidence does not indicate whether Pemberton lowered his price. See the summary of the deed below, Dec. 13.