The Fort

Source: LOC of Penobscot Bay (Maine) Map

A quote from The Fort; A Novel of the Revolutionary War by Bernard Cornwell; the subject was the Siege of Penobscot Bay, then part of Massachusetts, from July 24, 1779 to August 14, 1779):

We have received intelligence...from patriots in the Penobscot region.  We know for certain that a considerable force of the enemy has landed, that they are guarded by three sloops-of-war, and that they are commanded by Brigadier-General Francis McLean.  ...an experienced soldier.  Most of his service was in the Portuguese employment. (Page 96)

An authentic document that included a real-life character of The Fort:

Dr. Califf, affiant, was also a charachter in the book The Fort.

"Dr. Califf thinks that Matthew Lymburner cannot return to Penobscott.  he was taken prisoner by the Rebels during the Siege of Penobscott and cruelly treated but was liberated when the Rebel Fleet was drove a shore." [Source Audit Office: AO 12. Claims, American Loyalists...]

General McLean was also mentioned in the "Claims."