With her husband, she came to this country in 1793, and, apart from her professional duties on the stage, wrote a farce, "Volunteers" (1795), dealing with the Whiskey Insurrection in Pennsylvania, "The Female Patriot" (1794), "Slaves in Algiers; or, A Struggle for Freedom" (1794), and "Americans in England" (1796). All of these were produced. Her literary attainments were wide, her most popular novel being "Charlotte Temple, a Tale of Truth" (1790). She likewise compiled many educational works. (See Wegelin.) The picture conjured up in our mind of Mrs. Warren is farthest away from satire. To judge by the costume she wore when she sat to Copley for her portrait, she must have been graced with all the feminine wiles of the period. Behold Mrs. Mercy Warren, satirist, as the records describe her: Her head-dress is of white lace, trimmed with white satin ribbons. Her robe is of dark-green satin, with a pompadour waist, trimmed with point lace. There is a full plait at the back, hanging from the shoulders, and her sleeves are also of point lace. White illusion, trimmed with point lace, and fastened with a white satin bow, covers her neck. The front of the skirt and of the sleeves are elaborately trimmed with puffings of satin. But however agreeable this picture may be, Mrs. Warren, on reading Burgoyne's farce, immediately sharpened her pen, and replied by writing a counter-farce, which she called "The Blockheads; or, the Affrighted Officers."[2] It was in the prologue to this play that the poet-dramatist wrote: Your pardon first I crave for this intrusion. The topic's such it looks like a delusion; And next your candour, for I swear and vow, Such an attempt I never made till now. But constant laughing at the Desp'rate fate, The bastard sons of Mars endur'd of late, Induc'd me thus to minute down the notion, Which put my risibles in such commotion. By yankees frighted too! oh, dire to say! Why yankees sure at red-coats faint away! Oh, yes--They thought so too--for lack-a-day, Their gen'ral turned the _blockade_ to a play: Poor vain poltroons--with justice we'll retort, And call them _blockheads_ for their idle sport. Unfortunately, we cannot test the comparative value of satire as used by Burgoyne and Mrs. Warren, because the Burgoyne play is not in existence. But, undoubtedly, our Revolutionary enthusiast knew how to wield her pen in anger, and she reflects all of the bitter spirit of the time. Not only is this apparent in "The Blockheads," but likewise in "The Group," a piece which holds up to ridicule a number of people well known to the Boston of that day. Mrs. Warren was the writer of many plays, as well as being noted for her "History of the American Revolution" (1805), and for her slim volume of poems (1790), which follow the conventional sentiments of the conventionally sentimental English poetry of that time.