Morgann was born in Blaenbylan, Pembrokeshire, but little is known about his family or education, partly because at his request his executors destroyed all his personal papers after his death.
This pamphlet promoted Pitt's militia bill and reflected Tory opposition to a standing army and increased taxation.
Congress refused to receive him and it is possible that Morgann's report of the situation in America convinced Shelburne, now Prime Minister, to conclude the treaty with the American Commissioners in Paris which recognized the independence of the former colonies.
This work called for an alliance between the United States and Britain to meet the threat of French radicalism which Morgann considered to be a dangerous form of anarchy.
[6] In this character study, Morgann contradicted Dr Johnson's view of Falstaff as a drunken coward unworthy of admiration.
[7] Morgann summarises the complexity of Falstaff: "he is a character made up by Shakespeare wholly of incongruities; - a man at once young and old, enterprising and fat, a dupe and a wit, harmless and wicked, weak in principle and resolute by constitution, cowardly in appearance and brave in reality; a knave without malice, a lyar without deceit; and a knight, a gentleman and a soldier, without either dignity, decency or honour".