AMDigital Reference: EXT 1/262;EXT 1/262/1: Issues of the 'Pennsylvania Journal and Weekly Advertiser' 15 and 22 December 1773 and the 'Pennsylvania Gazette' 22 June, 27 July (with Supplement) and 21 (with Supplement) and 28 September 1774 (1773-4); EXT 1/262/2: Two Proclamations by John Penn, Governor of Pennsylvania, concerning state boundaries (1774).