What was advertised in a colonial American newspaper 250 years ago this week?

“He hereby offers, and assures a FREE PARDON.”
In late May 1769 Major General Alexander Mackay issued a pardon to “Soldiers who have deserted from His Majesty’s Troops quartered” in Boston, provided that they returned and surrendered by the last day of June. It was not, however, a blanket pardon; Mackay did exclude nearly twenty deserters who had committed other crimes. Instead of the promise of a pardon, he offered a reward for “apprehending and securing them in any of the public Goals [jails].” To get the word out about the pardons (and the rewards for the excluded soldiers), Mackay had one of his officers, “C. FORDYCE, Major of the Brigade,” insert notices in the public prints.
Dated May 23, the notice first appeared in the Boston Chronicle and the Boston Weekly News-Letter (published on the same broadsheet and distributed with Draper’s Massachusetts Gazette) on May 25. Within a week, the same notice ran in all of the newspapers published in Boston, appearing in the Boston Evening-Post, the Boston-Gazette, and the Boston Post-Boy (published in the same broadsheet and distributed with Green and Russell’s Massachusetts Gazette) at the first opportunity on May 29.
Over the next several weeks, publication of the notice concerning Mackay’s pardon radiated out from Boston. It next appeared in the Essex Gazette on May 30 and then the New-Hampshire Gazette and the New-London Gazette on June 2. The notice soon found its way into both newspapers published in Rhode Island, running in the Providence Gazette on June 3 and in the Newport Mercury on June 5. A week later, the same notice appeared in Hartford’s Connecticut Courant. With the exception of the Connecticut Journal, published in New Haven, the notice about the pardon ran in every newspaper in New England. (Copies of the Connecticut Journal for June 9 and 23 were not available for consultation. The notice may have appeared in one or both of those issues of the newspaper published at the furthest distance from Boston.)
At the same time that more newspapers featured the notice, most continued to include it in subsequent editions. It ran in every issue of the Boston Chronicle, the Boston-Gazette, the Boston Weekly News-Letter, the Connecticut Courant, the Essex Gazette, the New-London Gazette, the Newport Mercury, and the Providence Gazette from the time of first insertion through the end of June. It appeared in most issues of the Boston Post-Boy and the New-Hampshire Gazette, though it quickly disappeared from the Boston Evening-Post after only two insertions. In total, the notice ran at least fifty-one times in at least eleven newspapers published in New England over the course of five weeks. It made sense to print the notice far and wide considering that deserters were likely to leave Boston to evade capture.
Although information about the pardon could have been considered news, in each instance the notice appeared among the advertisements in every newspaper that carried it. Purveyors of consumer goods and services sometimes published advertisements in multiple newspapers in their city, but a coordinated advertising campaign of this magnitude was extraordinary in 1769. Members of the book trade sometimes inserted subscription notices among the advertisements in as many newspapers as possible, but even their efforts did not usually match the campaign created by Fordyce. He harnessed the power of the press to spread news of the pardons throughout New England, depending on both distribution networks and subsequent word of mouth to inform deserters that they would receive forgiveness if they only returned to their posts.